// Generates content of worksheetPart2.
        private void GenerateWorksheetPart2Content(WorksheetPart worksheetPart2)
        {
            Worksheet worksheet2 = new Worksheet() { MCAttributes = new MarkupCompatibilityAttributes() { Ignorable = "x14ac" } };
            worksheet2.AddNamespaceDeclaration("r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships");
            worksheet2.AddNamespaceDeclaration("xdr", "http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing");
            worksheet2.AddNamespaceDeclaration("x14", "http://schemas.microsoft.com/office/spreadsheetml/2009/9/main");
            worksheet2.AddNamespaceDeclaration("mc", "http://schemas.openxmlformats.org/markup-compatibility/2006");
            worksheet2.AddNamespaceDeclaration("x14ac", "http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac");
            SheetDimension sheetDimension2 = new SheetDimension() { Reference = "A1:V19" };

            SheetViews sheetViews2 = new SheetViews();

            SheetView sheetView2 = new SheetView() { TabSelected = true, WorkbookViewId = (UInt32Value)0U };
            Selection selection2 = new Selection() { ActiveCell = "X5", SequenceOfReferences = new ListValue<StringValue>() { InnerText = "X5" } };

            sheetView2.Append(selection2);

            sheetViews2.Append(sheetView2);
            SheetFormatProperties sheetFormatProperties2 = new SheetFormatProperties() { DefaultRowHeight = 15D, DyDescent = 0.25D };

            SheetData sheetData2 = new SheetData();

            Row row2 = new Row() { RowIndex = (UInt32Value)1U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell2 = new Cell() { CellReference = "A1" };
            CellValue cellValue2 = new CellValue();
            cellValue2.Text = "1";

            cell2.Append(cellValue2);

            Cell cell3 = new Cell() { CellReference = "C1", StyleIndex = (UInt32Value)1U, DataType = CellValues.SharedString };
            CellValue cellValue3 = new CellValue();
            cellValue3.Text = "0";

            cell3.Append(cellValue3);

            row2.Append(cell2);
            row2.Append(cell3);

            Row row3 = new Row() { RowIndex = (UInt32Value)2U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell4 = new Cell() { CellReference = "A2" };
            CellValue cellValue4 = new CellValue();
            cellValue4.Text = "2";

            cell4.Append(cellValue4);

            row3.Append(cell4);

            Row row4 = new Row() { RowIndex = (UInt32Value)3U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell5 = new Cell() { CellReference = "A3" };
            CellValue cellValue5 = new CellValue();
            cellValue5.Text = "3";

            cell5.Append(cellValue5);

            row4.Append(cell5);

            Row row5 = new Row() { RowIndex = (UInt32Value)4U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, Height = 135D, DyDescent = 0.25D };

            Cell cell6 = new Cell() { CellReference = "A4" };
            CellValue cellValue6 = new CellValue();
            cellValue6.Text = "4";

            cell6.Append(cellValue6);

            Cell cell7 = new Cell() { CellReference = "C4", StyleIndex = (UInt32Value)2U, DataType = CellValues.SharedString };
            CellValue cellValue7 = new CellValue();
            cellValue7.Text = "1";

            cell7.Append(cellValue7);

            row5.Append(cell6);
            row5.Append(cell7);

            Row row6 = new Row() { RowIndex = (UInt32Value)5U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell8 = new Cell() { CellReference = "A5" };
            CellValue cellValue8 = new CellValue();
            cellValue8.Text = "5";

            cell8.Append(cellValue8);

            Cell cell9 = new Cell() { CellReference = "Q5", StyleIndex = (UInt32Value)3U, DataType = CellValues.SharedString };
            CellValue cellValue9 = new CellValue();
            cellValue9.Text = "6";

            cell9.Append(cellValue9);

            Cell cell10 = new Cell() { CellReference = "T5" };
            CellValue cellValue10 = new CellValue();
            cellValue10.Text = "4";

            cell10.Append(cellValue10);

            row6.Append(cell8);
            row6.Append(cell9);
            row6.Append(cell10);

            Row row7 = new Row() { RowIndex = (UInt32Value)6U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell11 = new Cell() { CellReference = "A6" };
            CellFormula cellFormula1 = new CellFormula();
            cellFormula1.Text = "SUM(A1:A5)";
            CellValue cellValue11 = new CellValue();
            cellValue11.Text = "15";

            cell11.Append(cellFormula1);
            cell11.Append(cellValue11);

            Cell cell12 = new Cell() { CellReference = "T6" };
            CellValue cellValue12 = new CellValue();
            cellValue12.Text = "7";

            cell12.Append(cellValue12);

            row7.Append(cell11);
            row7.Append(cell12);

            Row row8 = new Row() { RowIndex = (UInt32Value)7U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell13 = new Cell() { CellReference = "T7" };
            CellValue cellValue13 = new CellValue();
            cellValue13.Text = "6";

            cell13.Append(cellValue13);

            row8.Append(cell13);

            Row row9 = new Row() { RowIndex = (UInt32Value)8U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell14 = new Cell() { CellReference = "T8" };
            CellValue cellValue14 = new CellValue();
            cellValue14.Text = "5";

            cell14.Append(cellValue14);

            row9.Append(cell14);

            Row row10 = new Row() { RowIndex = (UInt32Value)9U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell15 = new Cell() { CellReference = "T9" };
            CellValue cellValue15 = new CellValue();
            cellValue15.Text = "4";

            cell15.Append(cellValue15);

            row10.Append(cell15);

            Row row11 = new Row() { RowIndex = (UInt32Value)10U, Spans = new ListValue<StringValue>() { InnerText = "1:22" }, DyDescent = 0.25D };

            Cell cell16 = new Cell() { CellReference = "T10" };
            CellValue cellValue16 = new CellValue();
            cellValue16.Text = "7";

            cell16.Append(cellValue16);

            row11.Append(cell16);

            Row row12 = new Row() { RowIndex = (UInt32Value)17U, Spans = new ListValue<StringValue>() { InnerText = "1:3" }, DyDescent = 0.25D };

            Cell cell17 = new Cell() { CellReference = "A17", DataType = CellValues.SharedString };
            CellValue cellValue17 = new CellValue();
            cellValue17.Text = "3";

            cell17.Append(cellValue17);

            Cell cell18 = new Cell() { CellReference = "B17", DataType = CellValues.SharedString };
            CellValue cellValue18 = new CellValue();
            cellValue18.Text = "4";

            cell18.Append(cellValue18);

            Cell cell19 = new Cell() { CellReference = "C17", DataType = CellValues.SharedString };
            CellValue cellValue19 = new CellValue();
            cellValue19.Text = "5";

            cell19.Append(cellValue19);

            row12.Append(cell17);
            row12.Append(cell18);
            row12.Append(cell19);

            Row row13 = new Row() { RowIndex = (UInt32Value)18U, Spans = new ListValue<StringValue>() { InnerText = "1:3" }, DyDescent = 0.25D };

            Cell cell20 = new Cell() { CellReference = "A18" };
            CellValue cellValue20 = new CellValue();
            cellValue20.Text = "1";

            cell20.Append(cellValue20);

            Cell cell21 = new Cell() { CellReference = "B18" };
            CellValue cellValue21 = new CellValue();
            cellValue21.Text = "2";

            cell21.Append(cellValue21);

            Cell cell22 = new Cell() { CellReference = "C18" };
            CellValue cellValue22 = new CellValue();
            cellValue22.Text = "3";

            cell22.Append(cellValue22);

            row13.Append(cell20);
            row13.Append(cell21);
            row13.Append(cell22);

            Row row14 = new Row() { RowIndex = (UInt32Value)19U, Spans = new ListValue<StringValue>() { InnerText = "1:3" }, DyDescent = 0.25D };

            Cell cell23 = new Cell() { CellReference = "A19" };
            CellValue cellValue23 = new CellValue();
            cellValue23.Text = "4";

            cell23.Append(cellValue23);

            Cell cell24 = new Cell() { CellReference = "B19" };
            CellValue cellValue24 = new CellValue();
            cellValue24.Text = "5";

            cell24.Append(cellValue24);

            Cell cell25 = new Cell() { CellReference = "C19" };
            CellValue cellValue25 = new CellValue();
            cellValue25.Text = "6";

            cell25.Append(cellValue25);

            row14.Append(cell23);
            row14.Append(cell24);
            row14.Append(cell25);

            sheetData2.Append(row2);
            sheetData2.Append(row3);
            sheetData2.Append(row4);
            sheetData2.Append(row5);
            sheetData2.Append(row6);
            sheetData2.Append(row7);
            sheetData2.Append(row8);
            sheetData2.Append(row9);
            sheetData2.Append(row10);
            sheetData2.Append(row11);
            sheetData2.Append(row12);
            sheetData2.Append(row13);
            sheetData2.Append(row14);

            Hyperlinks hyperlinks1 = new Hyperlinks();
            Hyperlink hyperlink2 = new Hyperlink() { Reference = "Q5", Id = "rId1" };

            hyperlinks1.Append(hyperlink2);
            PageMargins pageMargins2 = new PageMargins() { Left = 0.25D, Right = 0.25D, Top = 0.75D, Bottom = 0.75D, Header = 0.3D, Footer = 0.3D };
            PageSetup pageSetup1 = new PageSetup() { Orientation = OrientationValues.Landscape, HorizontalDpi = (UInt32Value)4294967293U, VerticalDpi = (UInt32Value)0U, Id = "rId2" };
            S.Drawing drawing3 = new S.Drawing() { Id = "rId3" };
            LegacyDrawing legacyDrawing1 = new LegacyDrawing() { Id = "rId4" };

            TableParts tableParts1 = new TableParts() { Count = (UInt32Value)1U };
            TablePart tablePart1 = new TablePart() { Id = "rId5" };

            tableParts1.Append(tablePart1);

            worksheet2.Append(sheetDimension2);
            worksheet2.Append(sheetViews2);
            worksheet2.Append(sheetFormatProperties2);
            worksheet2.Append(sheetData2);
            worksheet2.Append(hyperlinks1);
            worksheet2.Append(pageMargins2);
            worksheet2.Append(pageSetup1);
            worksheet2.Append(drawing3);
            worksheet2.Append(legacyDrawing1);
            worksheet2.Append(tableParts1);

            worksheetPart2.Worksheet = worksheet2;
        }
示例#2
0
        private void WriteSelectedWorksheet()
        {
            // split into writing for existing worksheet and for new worksheet

            this.CleanUpReallyEmptyCells();

            int i = 0;
            bool bFound = false;
            OpenXmlElement oxe;

            SLColumnProperties cp;
            SLRowProperties rp;
            byte byMaxOutline;
            List<int> listintkeys;

            // remove empty rows/columns plus getting the maximum outline levels at the same time.

            byMaxOutline = 0;
            listintkeys = slws.RowProperties.Keys.ToList<int>();
            foreach (int key in listintkeys)
            {
                rp = slws.RowProperties[key];
                if (rp.IsEmpty) slws.RowProperties.Remove(key);
                else if (rp.OutlineLevel > byMaxOutline) byMaxOutline = rp.OutlineLevel;
            }
            if (byMaxOutline > 0) slws.SheetFormatProperties.OutlineLevelRow = byMaxOutline;

            byMaxOutline = 0;
            listintkeys = slws.ColumnProperties.Keys.ToList<int>();
            foreach (int key in listintkeys)
            {
                cp = slws.ColumnProperties[key];
                if (cp.IsEmpty) slws.ColumnProperties.Remove(key);
                else if (cp.OutlineLevel > byMaxOutline) byMaxOutline = cp.OutlineLevel;
            }
            if (byMaxOutline > 0) slws.SheetFormatProperties.OutlineLevelColumn = byMaxOutline;

            List<SLCellPoint> listCellRefKeys = slws.Cells.Keys.ToList<SLCellPoint>();
            listCellRefKeys.Sort(new SLCellReferencePointComparer());

            HashSet<int> hsRows = new HashSet<int>(listCellRefKeys.GroupBy(g => g.RowIndex).Select(s => s.Key).ToList<int>());
            hsRows.UnionWith(slws.RowProperties.Keys.ToList<int>());

            // this now contains every row index that's either in the list of row properties
            // or in the list of cells.
            List<int> listRowIndex = hsRows.ToList<int>();
            listRowIndex.Sort();

            List<int> listColumnIndex = slws.ColumnProperties.Keys.ToList<int>();
            listColumnIndex.Sort();

            int iDimensionStartRowIndex = SLConstants.RowLimit + 1;
            int iDimensionStartColumnIndex = SLConstants.ColumnLimit + 1;
            int iDimensionEndRowIndex = -1;
            int iDimensionEndColumnIndex = -1;

            if (listCellRefKeys.Count > 0 || listRowIndex.Count > 0 || listColumnIndex.Count > 0 || slws.MergeCells.Count > 0)
            {
                foreach (SLCellPoint refpt in slws.Cells.Keys)
                {
                    // just check for columns because row checking is already done with RowProperties
                    // this cuts down on checking, and speed things up.
                    if (refpt.ColumnIndex < iDimensionStartColumnIndex) iDimensionStartColumnIndex = refpt.ColumnIndex;
                    if (refpt.ColumnIndex > iDimensionEndColumnIndex) iDimensionEndColumnIndex = refpt.ColumnIndex;
                }

                if (listRowIndex.Count > 0)
                {
                    if (listRowIndex[0] < iDimensionStartRowIndex) iDimensionStartRowIndex = listRowIndex[0];
                    if (listRowIndex[listRowIndex.Count - 1] > iDimensionEndRowIndex) iDimensionEndRowIndex = listRowIndex[listRowIndex.Count - 1];
                }

                if (listColumnIndex.Count > 0)
                {
                    if (listColumnIndex[0] < iDimensionStartColumnIndex) iDimensionStartColumnIndex = listColumnIndex[0];
                    if (listColumnIndex[listColumnIndex.Count - 1] > iDimensionEndColumnIndex) iDimensionEndColumnIndex = listColumnIndex[listColumnIndex.Count - 1];
                }

                foreach (SLMergeCell mc in slws.MergeCells)
                {
                    if (mc.StartRowIndex < iDimensionStartRowIndex) iDimensionStartRowIndex = mc.StartRowIndex;
                    if (mc.StartColumnIndex < iDimensionStartColumnIndex) iDimensionStartColumnIndex = mc.StartColumnIndex;
                    if (mc.EndRowIndex > iDimensionEndRowIndex) iDimensionEndRowIndex = mc.EndRowIndex;
                    if (mc.EndColumnIndex > iDimensionEndColumnIndex) iDimensionEndColumnIndex = mc.EndColumnIndex;
                }

                // need to do for hyperlinks?
                //foreach (SLHyperlink hl in slws.Hyperlinks)
                //{
                //    if (hl.Reference.StartRowIndex < iDimensionStartRowIndex) iDimensionStartRowIndex = hl.Reference.StartRowIndex;
                //    if (hl.Reference.StartColumnIndex < iDimensionStartColumnIndex) iDimensionStartColumnIndex = hl.Reference.StartColumnIndex;
                //    if (hl.Reference.EndRowIndex > iDimensionEndRowIndex) iDimensionEndRowIndex = hl.Reference.EndRowIndex;
                //    if (hl.Reference.EndColumnIndex > iDimensionEndColumnIndex) iDimensionEndColumnIndex = hl.Reference.EndColumnIndex;
                //}
            }

            string sDimensionCellRange = string.Empty;
            if (iDimensionStartRowIndex > SLConstants.RowLimit) iDimensionStartRowIndex = 1;
            if (iDimensionStartColumnIndex > SLConstants.ColumnLimit) iDimensionStartColumnIndex = 1;
            if (iDimensionEndRowIndex < 1) iDimensionEndRowIndex = 1;
            if (iDimensionEndColumnIndex < 1) iDimensionEndColumnIndex = 1;
            if (iDimensionStartRowIndex == iDimensionEndRowIndex && iDimensionStartColumnIndex == iDimensionEndColumnIndex)
            {
                sDimensionCellRange = SLTool.ToCellReference(iDimensionStartRowIndex, iDimensionStartColumnIndex);
            }
            else
            {
                sDimensionCellRange = string.Format("{0}:{1}", SLTool.ToCellReference(iDimensionStartRowIndex, iDimensionStartColumnIndex), SLTool.ToCellReference(iDimensionEndRowIndex, iDimensionEndColumnIndex));
            }

            Row r;
            SLCell c;
            int iRowIndex = 0;
            int iCellDataKey = 0;
            int iRowKey = 0;
            SLCellPoint pt;

            if (!IsNewWorksheet)
            {
                // Need to check?
                //if (string.IsNullOrEmpty(gsSelectedWorksheetRelationshipID)) return;

                WorksheetPart wsp = (WorksheetPart)wbp.GetPartById(gsSelectedWorksheetRelationshipID);

                if (slws.ForceCustomRowColumnDimensionsSplitting)
                {
                    slws.ToggleCustomRowColumnDimension(true);
                }

                if (slws.PageSettings.HasSheetProperties)
                {
                    wsp.Worksheet.SheetProperties = slws.PageSettings.SheetProperties.ToSheetProperties();
                }
                else
                {
                    wsp.Worksheet.SheetProperties = null;
                }

                wsp.Worksheet.SheetDimension = new SheetDimension() { Reference = sDimensionCellRange };

                if (slws.SheetViews.Count > 0)
                {
                    wsp.Worksheet.SheetViews = new SheetViews();
                    foreach (SLSheetView sv in slws.SheetViews)
                    {
                        wsp.Worksheet.SheetViews.Append(sv.ToSheetView());
                    }
                }
                else
                {
                    wsp.Worksheet.SheetViews = null;
                }

                wsp.Worksheet.SheetFormatProperties = slws.SheetFormatProperties.ToSheetFormatProperties();

                #region Filling Columns
                if (wsp.Worksheet.Elements<Columns>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<Columns>();
                }

                if (slws.ColumnProperties.Count > 0)
                {
                    Columns cols = new Columns();
                    Column col;

                    int iPreviousColumnIndex = listColumnIndex[0];
                    int iCurrentColumnIndex = iPreviousColumnIndex;
                    string sCollectiveColumnData = string.Empty;
                    string sCurrentColumnData = string.Empty;
                    int colmin, colmax;
                    colmin = colmax = iCurrentColumnIndex;
                    cp = slws.ColumnProperties[iCurrentColumnIndex];
                    sCollectiveColumnData = cp.ToHash();

                    col = new Column();
                    col.Min = (uint)colmin;
                    col.Max = (uint)colmax;
                    if (cp.HasWidth)
                    {
                        col.Width = cp.Width;
                        col.CustomWidth = true;
                    }
                    else
                    {
                        col.Width = slws.SheetFormatProperties.DefaultColumnWidth;
                    }
                    if (cp.StyleIndex > 0) col.Style = cp.StyleIndex;
                    if (cp.Hidden) col.Hidden = cp.Hidden;
                    if (cp.BestFit) col.BestFit = cp.BestFit;
                    if (cp.Phonetic) col.Phonetic = cp.Phonetic;
                    if (cp.OutlineLevel > 0) col.OutlineLevel = cp.OutlineLevel;
                    if (cp.Collapsed) col.Collapsed = cp.Collapsed;

                    for (i = 1; i < listColumnIndex.Count; ++i)
                    {
                        iPreviousColumnIndex = iCurrentColumnIndex;
                        iCurrentColumnIndex = listColumnIndex[i];
                        cp = slws.ColumnProperties[iCurrentColumnIndex];
                        sCurrentColumnData = cp.ToHash();

                        if ((iCurrentColumnIndex != (iPreviousColumnIndex + 1)) || (sCollectiveColumnData != sCurrentColumnData))
                        {
                            col.Max = (uint)colmax;
                            cols.Append(col);

                            colmin = iCurrentColumnIndex;
                            colmax = iCurrentColumnIndex;
                            sCollectiveColumnData = sCurrentColumnData;

                            col = new Column();
                            col.Min = (uint)colmin;
                            col.Max = (uint)colmax;
                            if (cp.HasWidth)
                            {
                                col.Width = cp.Width;
                                col.CustomWidth = true;
                            }
                            else
                            {
                                col.Width = slws.SheetFormatProperties.DefaultColumnWidth;
                            }
                            if (cp.StyleIndex > 0) col.Style = cp.StyleIndex;
                            if (cp.Hidden) col.Hidden = cp.Hidden;
                            if (cp.BestFit) col.BestFit = cp.BestFit;
                            if (cp.Phonetic) col.Phonetic = cp.Phonetic;
                            if (cp.OutlineLevel > 0) col.OutlineLevel = cp.OutlineLevel;
                            if (cp.Collapsed) col.Collapsed = cp.Collapsed;
                        }
                        else
                        {
                            colmax = iCurrentColumnIndex;
                        }
                    }

                    // there's always a "leftover" column
                    col.Max = (uint)colmax;
                    cols.Append(col);

                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        if (child is SheetProperties || child is SheetDimension || child is SheetViews || child is SheetFormatProperties)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(cols, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(cols);
                    }
                }
                #endregion

                SheetData sd = new SheetData();

                iCellDataKey = 0;
                for (iRowKey = 0; iRowKey < listRowIndex.Count; ++iRowKey)
                {
                    iRowIndex = listRowIndex[iRowKey];
                    if (slws.RowProperties.ContainsKey(iRowIndex))
                    {
                        r = slws.RowProperties[iRowIndex].ToRow();
                        r.RowIndex = (uint)iRowIndex;
                    }
                    else
                    {
                        r = new Row();
                        r.RowIndex = (uint)iRowIndex;
                    }

                    while (iCellDataKey < listCellRefKeys.Count)
                    {
                        pt = listCellRefKeys[iCellDataKey];
                        if (pt.RowIndex == iRowIndex)
                        {
                            c = slws.Cells[pt];
                            r.Append(c.ToCell(SLTool.ToCellReference(pt.RowIndex, pt.ColumnIndex)));
                            ++iCellDataKey;
                        }
                        else
                        {
                            break;
                        }
                    }
                    sd.Append(r);
                }

                wsp.Worksheet.RemoveAllChildren<SheetData>();

                bFound = false;
                oxe = wsp.Worksheet.FirstChild;
                foreach (var child in wsp.Worksheet.ChildElements)
                {
                    if (child is SheetProperties || child is SheetDimension || child is SheetViews || child is SheetFormatProperties || child is Columns)
                    {
                        oxe = child;
                        bFound = true;
                    }
                }

                if (bFound)
                {
                    wsp.Worksheet.InsertAfter(sd, oxe);
                }
                else
                {
                    wsp.Worksheet.PrependChild(sd);
                }

                #region Sheet protection
                if (wsp.Worksheet.Elements<SheetProtection>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<SheetProtection>();
                }

                if (slws.HasSheetProtection)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(slws.SheetProtection.ToSheetProtection(), oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(slws.SheetProtection.ToSheetProtection());
                    }
                }
                #endregion

                #region AutoFilter
                if (wsp.Worksheet.Elements<AutoFilter>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<AutoFilter>();
                }

                if (slws.HasAutoFilter)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(slws.AutoFilter.ToAutoFilter(), oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(slws.AutoFilter.ToAutoFilter());
                    }
                }
                #endregion

                #region Filling merge cells
                if (wsp.Worksheet.Elements<MergeCells>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<MergeCells>();
                }

                if (slws.MergeCells.Count > 0)
                {
                    MergeCells mcs = new MergeCells() { Count = (uint)slws.MergeCells.Count };
                    for (i = 0; i < slws.MergeCells.Count; ++i)
                    {
                        mcs.Append(slws.MergeCells[i].ToMergeCell());
                    }

                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(mcs, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(mcs);
                    }
                }
                #endregion

                #region Conditional Formatting
                if (wsp.Worksheet.Elements<ConditionalFormatting>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<ConditionalFormatting>();
                }

                if (slws.ConditionalFormattings.Count > 0)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        for (i = slws.ConditionalFormattings.Count - 1; i >= 0; --i)
                        {
                            wsp.Worksheet.InsertAfter(slws.ConditionalFormattings[i].ToConditionalFormatting(), oxe);
                        }
                    }
                    else
                    {
                        for (i = slws.ConditionalFormattings.Count - 1; i >= 0; --i)
                        {
                            wsp.Worksheet.PrependChild(slws.ConditionalFormattings[i].ToConditionalFormatting());
                        }
                    }
                }
                #endregion

                #region DataValidations
                if (wsp.Worksheet.Elements<DataValidations>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<DataValidations>();
                }

                if (slws.DataValidations.Count > 0)
                {
                    DataValidations dvs = new DataValidations();
                    if (slws.DataValidationDisablePrompts) dvs.DisablePrompts = slws.DataValidationDisablePrompts;
                    if (slws.DataValidationXWindow != null) dvs.XWindow = slws.DataValidationXWindow.Value;
                    if (slws.DataValidationYWindow != null) dvs.YWindow = slws.DataValidationYWindow.Value;
                    dvs.Count = (uint)slws.DataValidations.Count;

                    foreach (SLDataValidation dv in slws.DataValidations)
                    {
                        dvs.Append(dv.ToDataValidation());
                    }

                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(dvs, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(dvs);
                    }
                }
                #endregion

                #region Hyperlinks
                if (wsp.Worksheet.Elements<Hyperlinks>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<Hyperlinks>();
                }

                if (slws.Hyperlinks.Count > 0)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    Hyperlinks hls = new Hyperlinks();
                    HyperlinkRelationship hlrel;
                    foreach (SLHyperlink hl in slws.Hyperlinks)
                    {
                        if (hl.IsExternal && hl.IsNew)
                        {
                            hlrel = wsp.AddHyperlinkRelationship(new Uri(hl.HyperlinkUri, hl.HyperlinkUriKind), true);
                            hl.Id = hlrel.Id;
                        }
                        hls.Append(hl.ToHyperlink());
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(hls, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(hls);
                    }
                }
                #endregion

                #region PrintOptions
                if (wsp.Worksheet.Elements<PrintOptions>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<PrintOptions>();
                }

                if (slws.PageSettings.HasPrintOptions)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(slws.PageSettings.ExportPrintOptions(), oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(slws.PageSettings.ExportPrintOptions());
                    }
                }
                #endregion

                #region PageMargins
                if (wsp.Worksheet.Elements<PageMargins>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<PageMargins>();
                }

                if (slws.PageSettings.HasPageMargins)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks || child is PrintOptions)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(slws.PageSettings.ExportPageMargins(), oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(slws.PageSettings.ExportPageMargins());
                    }
                }
                #endregion

                #region PageSetup
                if (wsp.Worksheet.Elements<PageSetup>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<PageSetup>();
                }

                if (slws.PageSettings.HasPageSetup)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks || child is PrintOptions
                            || child is PageMargins)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(slws.PageSettings.ExportPageSetup(), oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(slws.PageSettings.ExportPageSetup());
                    }
                }
                #endregion

                #region HeaderFooter
                if (wsp.Worksheet.Elements<HeaderFooter>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<HeaderFooter>();
                }

                if (slws.PageSettings.HasHeaderFooter)
                {
                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks || child is PrintOptions
                            || child is PageMargins || child is PageSetup)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(slws.PageSettings.ExportHeaderFooter(), oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(slws.PageSettings.ExportHeaderFooter());
                    }
                }
                #endregion

                #region RowBreaks
                if (wsp.Worksheet.Elements<RowBreaks>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<RowBreaks>();
                }

                if (slws.RowBreaks.Count > 0)
                {
                    List<int> bkkeys = slws.RowBreaks.Keys.ToList<int>();
                    bkkeys.Sort();

                    RowBreaks rowbk = new RowBreaks();
                    int bkmancount = 0;
                    foreach (int bkindex in bkkeys)
                    {
                        if (slws.RowBreaks[bkindex].ManualPageBreak) ++bkmancount;
                        rowbk.Append(slws.RowBreaks[bkindex].ToBreak());
                    }
                    rowbk.Count = (uint)slws.RowBreaks.Count;
                    rowbk.ManualBreakCount = (uint)bkmancount;

                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks || child is PrintOptions
                            || child is PageMargins || child is PageSetup || child is HeaderFooter)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(rowbk, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(rowbk);
                    }
                }
                #endregion

                #region ColumnBreaks
                if (wsp.Worksheet.Elements<ColumnBreaks>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<ColumnBreaks>();
                }

                if (slws.ColumnBreaks.Count > 0)
                {
                    List<int> bkkeys = slws.ColumnBreaks.Keys.ToList<int>();
                    bkkeys.Sort();

                    ColumnBreaks colbk = new ColumnBreaks();
                    int bkmancount = 0;
                    foreach (int bkindex in bkkeys)
                    {
                        if (slws.ColumnBreaks[bkindex].ManualPageBreak) ++bkmancount;
                        colbk.Append(slws.ColumnBreaks[bkindex].ToBreak());
                    }
                    colbk.Count = (uint)slws.ColumnBreaks.Count;
                    colbk.ManualBreakCount = (uint)bkmancount;

                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks || child is PrintOptions
                            || child is PageMargins || child is PageSetup || child is HeaderFooter
                            || child is RowBreaks)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(colbk, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(colbk);
                    }
                }
                #endregion

                #region Drawing
                // these are "new" charts and pictures added
                if (slws.Charts.Count > 0 || slws.Pictures.Count > 0)
                {
                    // if the length > 0, then we assume there's already an existing DrawingsPart
                    if (slws.DrawingId.Length > 0)
                    {
                        WriteImageParts(wsp.DrawingsPart);
                    }
                    else
                    {
                        DrawingsPart dp = wsp.AddNewPart<DrawingsPart>();
                        dp.WorksheetDrawing = new Xdr.WorksheetDrawing();
                        dp.WorksheetDrawing.AddNamespaceDeclaration("xdr", SLConstants.NamespaceXdr);
                        dp.WorksheetDrawing.AddNamespaceDeclaration("a", SLConstants.NamespaceA);

                        DocumentFormat.OpenXml.Spreadsheet.Drawing drawing = new DocumentFormat.OpenXml.Spreadsheet.Drawing();
                        drawing.Id = wsp.GetIdOfPart(dp);

                        WriteImageParts(dp);

                        // NOTE: SmartTags is deprecated in Open XML SDK 2.5, so have to remove
                        // from check below?

                        bFound = false;
                        oxe = wsp.Worksheet.FirstChild;
                        foreach (var child in wsp.Worksheet.ChildElements)
                        {
                            // start with SheetData because it's a required child element
                            if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                                || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                                || child is SortState || child is DataConsolidate || child is CustomSheetViews
                                || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                                || child is DataValidations || child is Hyperlinks || child is PrintOptions
                                || child is PageMargins || child is PageSetup || child is HeaderFooter
                                || child is RowBreaks || child is ColumnBreaks || child is CustomProperties
                                || child is CellWatches || child is IgnoredErrors /*|| child is SmartTags*/)
                            {
                                oxe = child;
                                bFound = true;
                            }
                        }

                        if (bFound)
                        {
                            wsp.Worksheet.InsertAfter(drawing, oxe);
                        }
                        else
                        {
                            wsp.Worksheet.PrependChild(drawing);
                        }
                    }
                }
                #endregion

                #region LegacyDrawing
                if (slws.Comments.Count > 0)
                {
                    // we're going to do this only if there are no comments and VML already
                    if (wsp.WorksheetCommentsPart == null
                        && wsp.Worksheet.Elements<LegacyDrawing>().Count() == 0)
                    {
                        WorksheetCommentsPart wcp = wsp.AddNewPart<WorksheetCommentsPart>();
                        VmlDrawingPart vdp = wsp.AddNewPart<VmlDrawingPart>();
                        WriteCommentPart(wcp, vdp);

                        LegacyDrawing ldrawing = new LegacyDrawing();
                        ldrawing.Id = wsp.GetIdOfPart(vdp);

                        // NOTE: SmartTags is deprecated in Open XML SDK 2.5, so have to remove
                        // from check below?

                        bFound = false;
                        oxe = wsp.Worksheet.FirstChild;
                        foreach (var child in wsp.Worksheet.ChildElements)
                        {
                            // start with SheetData because it's a required child element
                            if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                                || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                                || child is SortState || child is DataConsolidate || child is CustomSheetViews
                                || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                                || child is DataValidations || child is Hyperlinks || child is PrintOptions
                                || child is PageMargins || child is PageSetup || child is HeaderFooter
                                || child is RowBreaks || child is ColumnBreaks || child is CustomProperties
                                || child is CellWatches || child is IgnoredErrors /*|| child is SmartTags*/
                                || child is DocumentFormat.OpenXml.Spreadsheet.Drawing)
                            {
                                oxe = child;
                                bFound = true;
                            }
                        }

                        if (bFound)
                        {
                            wsp.Worksheet.InsertAfter(ldrawing, oxe);
                        }
                        else
                        {
                            wsp.Worksheet.PrependChild(ldrawing);
                        }
                    }
                }
                #endregion

                #region Picture
                if (wsp.Worksheet.Elements<Picture>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<Picture>();
                }

                if (slws.BackgroundPictureId.Length > 0 || slws.BackgroundPictureDataIsInFile != null)
                {
                    Picture pic = new Picture();
                    if (slws.BackgroundPictureId.Length > 0)
                    {
                        pic.Id = slws.BackgroundPictureId;
                    }
                    else if (slws.BackgroundPictureDataIsInFile != null)
                    {
                        ImagePart imgp = wsp.AddImagePart(slws.BackgroundPictureImagePartType);
                        if (slws.BackgroundPictureDataIsInFile.Value)
                        {
                            using (FileStream fs = new FileStream(slws.BackgroundPictureFileName, FileMode.Open))
                            {
                                imgp.FeedData(fs);
                            }
                        }
                        else
                        {
                            using (MemoryStream ms = new MemoryStream(slws.BackgroundPictureByteData))
                            {
                                imgp.FeedData(ms);
                            }
                        }
                        pic.Id = wsp.GetIdOfPart(imgp);
                    }

                    // NOTE: SmartTags is deprecated in Open XML SDK 2.5, so have to remove
                    // from check below?

                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks || child is PrintOptions
                            || child is PageMargins || child is PageSetup || child is HeaderFooter
                            || child is RowBreaks || child is ColumnBreaks || child is CustomProperties
                            || child is CellWatches || child is IgnoredErrors /*|| child is SmartTags*/
                            || child is DocumentFormat.OpenXml.Spreadsheet.Drawing
                            || child is LegacyDrawing || child is LegacyDrawingHeaderFooter)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(pic, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(pic);
                    }
                }
                #endregion

                #region Tables
                if (wsp.Worksheet.Elements<TableParts>().Count() > 0)
                {
                    wsp.Worksheet.RemoveAllChildren<TableParts>();
                }

                if (slws.Tables.Count > 0)
                {
                    TableParts tps = new TableParts() { Count = (uint)slws.Tables.Count };
                    TableDefinitionPart tdp;
                    string sRelID = string.Empty;
                    foreach (SLTable t in slws.Tables)
                    {
                        if (t.IsNewTable)
                        {
                            if (t.RelationshipID.Length > 0)
                            {
                                // is a modified existing table
                                tdp = (TableDefinitionPart)wsp.GetPartById(t.RelationshipID);
                                tdp.Table = t.ToTable();
                                sRelID = t.RelationshipID;
                            }
                            else
                            {
                                // is a completely new table
                                tdp = wsp.AddNewPart<TableDefinitionPart>();
                                tdp.Table = t.ToTable();
                                sRelID = wsp.GetIdOfPart(tdp);
                            }

                        }
                        else
                        {
                            // if it's an existing table with no modifications,
                            // don't need to do anything to the XML content.
                            tdp = (TableDefinitionPart)wsp.GetPartById(t.RelationshipID);
                            sRelID = t.RelationshipID;
                        }

                        tps.Append(new TablePart() { Id = sRelID });
                    }

                    // NOTE: SmartTags is deprecated in Open XML SDK 2.5, so have to remove
                    // from check below?

                    bFound = false;
                    oxe = wsp.Worksheet.FirstChild;
                    foreach (var child in wsp.Worksheet.ChildElements)
                    {
                        // start with SheetData because it's a required child element
                        if (child is SheetData || child is SheetCalculationProperties || child is SheetProtection
                            || child is ProtectedRanges || child is Scenarios || child is AutoFilter
                            || child is SortState || child is DataConsolidate || child is CustomSheetViews
                            || child is MergeCells || child is PhoneticProperties || child is ConditionalFormatting
                            || child is DataValidations || child is Hyperlinks || child is PrintOptions
                            || child is PageMargins || child is PageSetup || child is HeaderFooter
                            || child is RowBreaks || child is ColumnBreaks || child is CustomProperties
                            || child is CellWatches || child is IgnoredErrors /*|| child is SmartTags*/
                            || child is DocumentFormat.OpenXml.Spreadsheet.Drawing
                            || child is LegacyDrawing || child is LegacyDrawingHeaderFooter
                            || child is Picture || child is OleObjects || child is Controls
                            || child is WebPublishItems)
                        {
                            oxe = child;
                            bFound = true;
                        }
                    }

                    if (bFound)
                    {
                        wsp.Worksheet.InsertAfter(tps, oxe);
                    }
                    else
                    {
                        wsp.Worksheet.PrependChild(tps);
                    }
                }
                #endregion

                #region 2010 Conditional formatting, Sparklines and possibly other extensions
                WorksheetExtensionList wsextlist;
                WorksheetExtension wsext;
                List<WorksheetExtension> listExtensions = new List<WorksheetExtension>();
                slws.RefreshSparklineGroups();

                if (wsp.Worksheet.Elements<WorksheetExtensionList>().Count() > 0)
                {
                    wsextlist = wsp.Worksheet.Elements<WorksheetExtensionList>().First();
                    foreach (var wsextchild in wsextlist.ChildElements)
                    {
                        if (wsextchild is WorksheetExtension)
                        {
                            wsext = (WorksheetExtension)wsextchild;
                            wsext.RemoveAllChildren<X14.ConditionalFormattings>();
                            wsext.RemoveAllChildren<X14.SparklineGroups>();
                            // there might be other extension types, like slicers (erhmahgerd...).
                            if (wsext.ChildElements.Count > 0)
                            {
                                listExtensions.Add((WorksheetExtension)wsext.CloneNode(true));
                            }
                        }
                    }
                    wsp.Worksheet.RemoveAllChildren<WorksheetExtensionList>();
                }

                if (slws.ConditionalFormattings2010.Count > 0
                    || slws.SparklineGroups.Count > 0
                    || listExtensions.Count > 0)
                {
                    wsextlist = new WorksheetExtensionList();
                    foreach (WorksheetExtension ext in listExtensions)
                    {
                        // be extra safe by cloning again to avoid pass-by-reference. Deeply.
                        wsextlist.Append((WorksheetExtension)ext.CloneNode(true));
                    }

                    if (slws.ConditionalFormattings2010.Count > 0)
                    {
                        // this is important! Apparently extensions are tied to a URI that Microsoft uses.
                        wsext = new WorksheetExtension() { Uri = SLConstants.ConditionalFormattingExtensionUri };
                        wsext.AddNamespaceDeclaration("x14", SLConstants.NamespaceX14);
                        X14.ConditionalFormattings cfs = new X14.ConditionalFormattings();
                        foreach (SLConditionalFormatting2010 cfr2010 in slws.ConditionalFormattings2010)
                        {
                            cfs.Append(cfr2010.ToConditionalFormatting());
                        }
                        wsext.Append(cfs);
                        wsextlist.Append(wsext);
                    }

                    if (slws.SparklineGroups.Count > 0)
                    {
                        // this is important! Apparently extensions are tied to a URI that Microsoft uses.
                        wsext = new WorksheetExtension() { Uri = SLConstants.SparklineExtensionUri };
                        wsext.AddNamespaceDeclaration("x14", SLConstants.NamespaceX14);
                        X14.SparklineGroups spkgrps = new X14.SparklineGroups();
                        spkgrps.AddNamespaceDeclaration("xm", SLConstants.NamespaceXm);
                        foreach (SLSparklineGroup spkgrp in slws.SparklineGroups)
                        {
                            spkgrps.Append(spkgrp.ToSparklineGroup());
                        }
                        wsext.Append(spkgrps);
                        wsextlist.Append(wsext);
                    }

                    // WorksheetExtensionList is the very last element possible.
                    // So we can just append it because everything else is in front.
                    wsp.Worksheet.Append(wsextlist);
                }
                #endregion

                wsp.Worksheet.Save();
                // end of writing for existing worksheet
            }
            else
            {
                // start of writing for new worksheet
                WorksheetPart wsp = wbp.AddNewPart<WorksheetPart>();
                gsSelectedWorksheetRelationshipID = wbp.GetIdOfPart(wsp);
                foreach (SLSheet s in slwb.Sheets)
                {
                    if (s.Name.Equals(gsSelectedWorksheetName, StringComparison.OrdinalIgnoreCase))
                    {
                        s.Id = gsSelectedWorksheetRelationshipID;
                        break;
                    }
                }

                if (slws.ForceCustomRowColumnDimensionsSplitting)
                {
                    slws.ToggleCustomRowColumnDimension(true);
                }

                List<OpenXmlAttribute> oxa;
                OpenXmlWriter oxw = OpenXmlWriter.Create(wsp);

                oxa = new List<OpenXmlAttribute>();
                oxa.Add(new OpenXmlAttribute("xmlns:r", null, SLConstants.NamespaceRelationships));

                if (slws.ConditionalFormattings2010.Count > 0
                    || slws.SparklineGroups.Count > 0)
                {
                    oxa.Add(new OpenXmlAttribute("xmlns:x14", null, SLConstants.NamespaceX14));
                    oxa.Add(new OpenXmlAttribute("xmlns:xm", null, SLConstants.NamespaceXm));
                    oxa.Add(new OpenXmlAttribute("xmlns:mc", null, SLConstants.NamespaceMc));
                    oxa.Add(new OpenXmlAttribute("xmlns:x14ac", null, SLConstants.NamespaceX14ac));
                    oxa.Add(new OpenXmlAttribute("mc", "Ignorable", SLConstants.NamespaceMc, "x14ac"));
                    oxw.WriteStartElement(new Worksheet(), oxa);
                }
                else
                {
                    oxw.WriteStartElement(new Worksheet(), oxa);
                }

                if (slws.PageSettings.HasSheetProperties)
                {
                    oxw.WriteElement(slws.PageSettings.SheetProperties.ToSheetProperties());
                }

                oxw.WriteElement(new SheetDimension() { Reference = sDimensionCellRange });

                if (slws.SheetViews.Count > 0)
                {
                    oxw.WriteStartElement(new SheetViews());

                    foreach (SLSheetView sv in slws.SheetViews)
                    {
                        oxw.WriteElement(sv.ToSheetView());
                    }

                    oxw.WriteEndElement();
                }

                oxa = new List<OpenXmlAttribute>();
                if (slws.SheetFormatProperties.BaseColumnWidth != null && slws.SheetFormatProperties.BaseColumnWidth.Value != 8)
                {
                    oxa.Add(new OpenXmlAttribute("baseColWidth", null, slws.SheetFormatProperties.BaseColumnWidth.Value.ToString(CultureInfo.InvariantCulture)));
                }
                if (slws.SheetFormatProperties.HasDefaultColumnWidth)
                {
                    oxa.Add(new OpenXmlAttribute("defaultColWidth", null, slws.SheetFormatProperties.DefaultColumnWidth.ToString(CultureInfo.InvariantCulture)));
                }
                oxa.Add(new OpenXmlAttribute("defaultRowHeight", null, slws.SheetFormatProperties.DefaultRowHeight.ToString("0.####", CultureInfo.InvariantCulture)));
                if (slws.SheetFormatProperties.CustomHeight != null && slws.SheetFormatProperties.CustomHeight.Value)
                {
                    oxa.Add(new OpenXmlAttribute("customHeight", null, "1"));
                }
                if (slws.SheetFormatProperties.ZeroHeight != null && slws.SheetFormatProperties.ZeroHeight.Value)
                {
                    oxa.Add(new OpenXmlAttribute("zeroHeight", null, "1"));
                }
                if (slws.SheetFormatProperties.ThickTop != null && slws.SheetFormatProperties.ThickTop.Value)
                {
                    oxa.Add(new OpenXmlAttribute("thickTop", null, "1"));
                }
                if (slws.SheetFormatProperties.ThickBottom != null && slws.SheetFormatProperties.ThickBottom.Value)
                {
                    oxa.Add(new OpenXmlAttribute("thickBottom", null, "1"));
                }
                if (slws.SheetFormatProperties.OutlineLevelRow != null && slws.SheetFormatProperties.OutlineLevelRow.Value > 0)
                {
                    oxa.Add(new OpenXmlAttribute("outlineLevelRow", null, slws.SheetFormatProperties.OutlineLevelRow.Value.ToString(CultureInfo.InvariantCulture)));
                }
                if (slws.SheetFormatProperties.OutlineLevelColumn != null && slws.SheetFormatProperties.OutlineLevelColumn.Value > 0)
                {
                    oxa.Add(new OpenXmlAttribute("outlineLevelCol", null, slws.SheetFormatProperties.OutlineLevelColumn.Value.ToString(CultureInfo.InvariantCulture)));
                }
                oxw.WriteStartElement(new SheetFormatProperties(), oxa);
                oxw.WriteEndElement();

                #region Filling Columns
                if (slws.ColumnProperties.Count > 0)
                {
                    oxw.WriteStartElement(new Columns());

                    int iPreviousColumnIndex = listColumnIndex[0];
                    int iCurrentColumnIndex = iPreviousColumnIndex;
                    string sCollectiveColumnData = string.Empty;
                    string sCurrentColumnData = string.Empty;
                    int colmin, colmax;
                    colmin = colmax = iCurrentColumnIndex;
                    cp = slws.ColumnProperties[iCurrentColumnIndex];
                    sCollectiveColumnData = cp.ToHash();

                    oxa = new List<OpenXmlAttribute>();
                    oxa.Add(new OpenXmlAttribute("min", null, colmin.ToString(CultureInfo.InvariantCulture)));
                    // max is left to the end because we're calculating it
                    //oxa.Add(new OpenXmlAttribute("max", null, colmax.ToString(CultureInfo.InvariantCulture)));
                    if (cp.HasWidth)
                    {
                        oxa.Add(new OpenXmlAttribute("width", null, cp.Width.ToString(CultureInfo.InvariantCulture)));
                        oxa.Add(new OpenXmlAttribute("customWidth", null, "1"));
                    }
                    else
                    {
                        oxa.Add(new OpenXmlAttribute("width", null, slws.SheetFormatProperties.DefaultColumnWidth.ToString(CultureInfo.InvariantCulture)));
                    }
                    if (cp.StyleIndex > 0) oxa.Add(new OpenXmlAttribute("style", null, cp.StyleIndex.ToString(CultureInfo.InvariantCulture)));
                    if (cp.Hidden != false) oxa.Add(new OpenXmlAttribute("hidden", null, "1"));
                    if (cp.BestFit != false) oxa.Add(new OpenXmlAttribute("bestFit", null, "1"));
                    if (cp.Phonetic != false) oxa.Add(new OpenXmlAttribute("phonetic", null, "1"));
                    if (cp.OutlineLevel > 0) oxa.Add(new OpenXmlAttribute("outlineLevel", null, cp.OutlineLevel.ToString(CultureInfo.InvariantCulture)));
                    if (cp.Collapsed != false) oxa.Add(new OpenXmlAttribute("collapsed", null, "1"));

                    for (i = 1; i < listColumnIndex.Count; ++i)
                    {
                        iPreviousColumnIndex = iCurrentColumnIndex;
                        iCurrentColumnIndex = listColumnIndex[i];
                        cp = slws.ColumnProperties[iCurrentColumnIndex];
                        sCurrentColumnData = cp.ToHash();

                        if ((iCurrentColumnIndex != (iPreviousColumnIndex + 1)) || (sCollectiveColumnData != sCurrentColumnData))
                        {
                            oxa.Add(new OpenXmlAttribute("max", null, colmax.ToString(CultureInfo.InvariantCulture)));
                            oxw.WriteStartElement(new Column(), oxa);
                            oxw.WriteEndElement();

                            colmin = iCurrentColumnIndex;
                            colmax = iCurrentColumnIndex;
                            sCollectiveColumnData = sCurrentColumnData;

                            oxa = new List<OpenXmlAttribute>();
                            oxa.Add(new OpenXmlAttribute("min", null, colmin.ToString(CultureInfo.InvariantCulture)));
                            if (cp.HasWidth)
                            {
                                oxa.Add(new OpenXmlAttribute("width", null, cp.Width.ToString(CultureInfo.InvariantCulture)));
                                oxa.Add(new OpenXmlAttribute("customWidth", null, "1"));
                            }
                            else
                            {
                                oxa.Add(new OpenXmlAttribute("width", null, slws.SheetFormatProperties.DefaultColumnWidth.ToString(CultureInfo.InvariantCulture)));
                            }
                            if (cp.StyleIndex > 0) oxa.Add(new OpenXmlAttribute("style", null, cp.StyleIndex.ToString(CultureInfo.InvariantCulture)));
                            if (cp.Hidden != false) oxa.Add(new OpenXmlAttribute("hidden", null, "1"));
                            if (cp.BestFit != false) oxa.Add(new OpenXmlAttribute("bestFit", null, "1"));
                            if (cp.Phonetic != false) oxa.Add(new OpenXmlAttribute("phonetic", null, "1"));
                            if (cp.OutlineLevel > 0) oxa.Add(new OpenXmlAttribute("outlineLevel", null, cp.OutlineLevel.ToString(CultureInfo.InvariantCulture)));
                            if (cp.Collapsed != false) oxa.Add(new OpenXmlAttribute("collapsed", null, "1"));
                        }
                        else
                        {
                            colmax = iCurrentColumnIndex;
                        }
                    }

                    // there's always a "leftover" column
                    oxa.Add(new OpenXmlAttribute("max", null, colmax.ToString(CultureInfo.InvariantCulture)));
                    oxw.WriteStartElement(new Column(), oxa);
                    oxw.WriteEndElement();

                    oxw.WriteEndElement();
                }
                #endregion

                oxw.WriteStartElement(new SheetData());

                iCellDataKey = 0;
                for (iRowKey = 0; iRowKey < listRowIndex.Count; ++iRowKey)
                {
                    iRowIndex = listRowIndex[iRowKey];
                    oxa = new List<OpenXmlAttribute>();
                    oxa.Add(new OpenXmlAttribute("r", null, iRowIndex.ToString(CultureInfo.InvariantCulture)));
                    if (slws.RowProperties.ContainsKey(iRowIndex))
                    {
                        rp = slws.RowProperties[iRowIndex];
                        if (rp.StyleIndex > 0)
                        {
                            oxa.Add(new OpenXmlAttribute("s", null, rp.StyleIndex.ToString(CultureInfo.InvariantCulture)));
                            oxa.Add(new OpenXmlAttribute("customFormat", null, "1"));
                        }
                        if (rp.HasHeight)
                        {
                            oxa.Add(new OpenXmlAttribute("ht", null, rp.Height.ToString(CultureInfo.InvariantCulture)));
                        }
                        if (rp.Hidden != false)
                        {
                            oxa.Add(new OpenXmlAttribute("hidden", null, "1"));
                        }
                        if (rp.CustomHeight)
                        {
                            oxa.Add(new OpenXmlAttribute("customHeight", null, "1"));
                        }
                        if (rp.OutlineLevel > 0)
                        {
                            oxa.Add(new OpenXmlAttribute("outlineLevel", null, rp.OutlineLevel.ToString(CultureInfo.InvariantCulture)));
                        }
                        if (rp.Collapsed != false)
                        {
                            oxa.Add(new OpenXmlAttribute("collapsed", null, "1"));
                        }
                        if (rp.ThickTop != false)
                        {
                            oxa.Add(new OpenXmlAttribute("thickTop", null, "1"));
                        }
                        if (rp.ThickBottom != false)
                        {
                            oxa.Add(new OpenXmlAttribute("thickBot", null, "1"));
                        }
                        if (rp.ShowPhonetic != false)
                        {
                            oxa.Add(new OpenXmlAttribute("ph", null, "1"));
                        }
                    }
                    oxw.WriteStartElement(new Row(), oxa);

                    while (iCellDataKey < listCellRefKeys.Count)
                    {
                        pt = listCellRefKeys[iCellDataKey];
                        if (pt.RowIndex == iRowIndex)
                        {
                            c = slws.Cells[pt];

                            oxa = new List<OpenXmlAttribute>();
                            oxa.Add(new OpenXmlAttribute("r", null, SLTool.ToCellReference(pt.RowIndex, pt.ColumnIndex)));
                            if (c.StyleIndex > 0)
                            {
                                oxa.Add(new OpenXmlAttribute("s", null, c.StyleIndex.ToString(CultureInfo.InvariantCulture)));
                            }

                            // number type is default
                            switch (c.DataType)
                            {
                                case CellValues.Boolean:
                                    oxa.Add(new OpenXmlAttribute("t", null, "b"));
                                    break;
                                case CellValues.Date:
                                    oxa.Add(new OpenXmlAttribute("t", null, "d"));
                                    break;
                                case CellValues.Error:
                                    oxa.Add(new OpenXmlAttribute("t", null, "e"));
                                    break;
                                case CellValues.InlineString:
                                    oxa.Add(new OpenXmlAttribute("t", null, "inlineStr"));
                                    break;
                                case CellValues.SharedString:
                                    oxa.Add(new OpenXmlAttribute("t", null, "s"));
                                    break;
                                case CellValues.String:
                                    oxa.Add(new OpenXmlAttribute("t", null, "str"));
                                    break;
                            }

                            if (c.CellMetaIndex > 0)
                            {
                                oxa.Add(new OpenXmlAttribute("cm", null, c.CellMetaIndex.ToString(CultureInfo.InvariantCulture)));
                            }
                            if (c.ValueMetaIndex > 0)
                            {
                                oxa.Add(new OpenXmlAttribute("vm", null, c.ValueMetaIndex.ToString(CultureInfo.InvariantCulture)));
                            }
                            if (c.ShowPhonetic != false)
                            {
                                oxa.Add(new OpenXmlAttribute("ph", null, "1"));
                            }
                            oxw.WriteStartElement(new Cell(), oxa);
                            if (c.CellFormula != null)
                            {
                                oxw.WriteElement(c.CellFormula.ToCellFormula());
                            }

                            if (c.CellText != null)
                            {
                                if (c.CellText.Length > 0)
                                {
                                    if (c.ToPreserveSpace)
                                    {
                                        oxw.WriteElement(new CellValue(c.CellText)
                                        {
                                            Space = SpaceProcessingModeValues.Preserve
                                        });
                                    }
                                    else
                                    {
                                        oxw.WriteElement(new CellValue(c.CellText));
                                    }
                                }
                            }
                            else
                            {
                                if (c.DataType == CellValues.Number)
                                {
                                    oxw.WriteElement(new CellValue(c.NumericValue.ToString(CultureInfo.InvariantCulture)));
                                }
                                else if (c.DataType == CellValues.SharedString)
                                {
                                    oxw.WriteElement(new CellValue(c.NumericValue.ToString("f0", CultureInfo.InvariantCulture)));
                                }
                                else if (c.DataType == CellValues.Boolean)
                                {
                                    if (c.NumericValue > 0.5) oxw.WriteElement(new CellValue("1"));
                                    else oxw.WriteElement(new CellValue("0"));
                                }
                            }
                            oxw.WriteEndElement();

                            ++iCellDataKey;
                        }
                        else
                        {
                            break;
                        }
                    }
                    oxw.WriteEndElement();
                }

                oxw.WriteEndElement();

                #region Sheet protection
                if (slws.HasSheetProtection)
                {
                    oxw.WriteElement(slws.SheetProtection.ToSheetProtection());
                }
                #endregion

                #region AutoFilter
                if (slws.HasAutoFilter)
                {
                    oxw.WriteElement(slws.AutoFilter.ToAutoFilter());
                }
                #endregion

                #region Filling merge cells
                if (slws.MergeCells.Count > 0)
                {
                    oxw.WriteStartElement(new MergeCells() { Count = (uint)slws.MergeCells.Count });
                    for (i = 0; i < slws.MergeCells.Count; ++i)
                    {
                        oxw.WriteElement(slws.MergeCells[i].ToMergeCell());
                    }
                    oxw.WriteEndElement();
                }
                #endregion

                #region Conditional Formatting
                if (slws.ConditionalFormattings.Count > 0)
                {
                    for (i = 0; i < slws.ConditionalFormattings.Count; ++i)
                    {
                        oxw.WriteElement(slws.ConditionalFormattings[i].ToConditionalFormatting());
                    }
                }
                #endregion

                #region DataValidations
                if (slws.DataValidations.Count > 0)
                {
                    DataValidations dvs = new DataValidations();
                    if (slws.DataValidationDisablePrompts) dvs.DisablePrompts = slws.DataValidationDisablePrompts;
                    if (slws.DataValidationXWindow != null) dvs.XWindow = slws.DataValidationXWindow.Value;
                    if (slws.DataValidationYWindow != null) dvs.YWindow = slws.DataValidationYWindow.Value;
                    dvs.Count = (uint)slws.DataValidations.Count;

                    foreach (SLDataValidation dv in slws.DataValidations)
                    {
                        dvs.Append(dv.ToDataValidation());
                    }

                    oxw.WriteElement(dvs);
                }
                #endregion

                #region Hyperlinks
                if (slws.Hyperlinks.Count > 0)
                {
                    Hyperlinks hls = new Hyperlinks();
                    HyperlinkRelationship hlrel;
                    foreach (SLHyperlink hl in slws.Hyperlinks)
                    {
                        if (hl.IsExternal && hl.IsNew)
                        {
                            hlrel = wsp.AddHyperlinkRelationship(new Uri(hl.HyperlinkUri, hl.HyperlinkUriKind), true);
                            hl.Id = hlrel.Id;
                        }
                        hls.Append(hl.ToHyperlink());
                    }

                    oxw.WriteElement(hls);
                }
                #endregion

                #region PrintOptions
                if (slws.PageSettings.HasPrintOptions)
                {
                    oxw.WriteElement(slws.PageSettings.ExportPrintOptions());
                }
                #endregion

                #region PageMargins
                if (slws.PageSettings.HasPageMargins)
                {
                    oxw.WriteElement(slws.PageSettings.ExportPageMargins());
                }
                #endregion

                #region PageSetup
                if (slws.PageSettings.HasPageSetup)
                {
                    oxw.WriteElement(slws.PageSettings.ExportPageSetup());
                }
                #endregion

                #region HeaderFooter
                if (slws.PageSettings.HasHeaderFooter)
                {
                    oxw.WriteElement(slws.PageSettings.ExportHeaderFooter());
                }
                #endregion

                #region RowBreaks
                if (slws.RowBreaks.Count > 0)
                {
                    List<int> bkkeys = slws.RowBreaks.Keys.ToList<int>();
                    bkkeys.Sort();

                    // if it's a new worksheet, then all breaks are considered manual
                    oxw.WriteStartElement(new RowBreaks()
                    {
                        Count = (uint)slws.RowBreaks.Count,
                        ManualBreakCount = (uint)slws.RowBreaks.Count
                    });
                    foreach (int bkindex in bkkeys)
                    {
                        oxw.WriteElement(slws.RowBreaks[bkindex].ToBreak());
                    }
                    oxw.WriteEndElement();
                }
                #endregion

                #region ColumnBreaks
                if (slws.ColumnBreaks.Count > 0)
                {
                    List<int> bkkeys = slws.ColumnBreaks.Keys.ToList<int>();
                    bkkeys.Sort();

                    // if it's a new worksheet, then all breaks are considered manual
                    oxw.WriteStartElement(new ColumnBreaks()
                    {
                        Count = (uint)slws.ColumnBreaks.Count,
                        ManualBreakCount = (uint)slws.ColumnBreaks.Count
                    });
                    foreach (int bkindex in bkkeys)
                    {
                        oxw.WriteElement(slws.ColumnBreaks[bkindex].ToBreak());
                    }
                    oxw.WriteEndElement();
                }
                #endregion

                #region Drawing
                // these are "new" charts and pictures added
                if (slws.Charts.Count > 0 || slws.Pictures.Count > 0)
                {
                    DrawingsPart dp = wsp.AddNewPart<DrawingsPart>();
                    dp.WorksheetDrawing = new Xdr.WorksheetDrawing();
                    dp.WorksheetDrawing.AddNamespaceDeclaration("xdr", SLConstants.NamespaceXdr);
                    dp.WorksheetDrawing.AddNamespaceDeclaration("a", SLConstants.NamespaceA);

                    oxw.WriteElement(new DocumentFormat.OpenXml.Spreadsheet.Drawing() { Id = wsp.GetIdOfPart(dp) });

                    WriteImageParts(dp);
                }
                #endregion

                #region LegacyDrawing
                // these are "new" comments added
                if (slws.Comments.Count > 0)
                {
                    WorksheetCommentsPart wcp = wsp.AddNewPart<WorksheetCommentsPart>();
                    VmlDrawingPart vdp = wsp.AddNewPart<VmlDrawingPart>();
                    WriteCommentPart(wcp, vdp);

                    oxw.WriteElement(new LegacyDrawing() { Id = wsp.GetIdOfPart(vdp) });
                }
                #endregion

                #region Picture
                if (slws.BackgroundPictureDataIsInFile != null)
                {
                    ImagePart imgp = wsp.AddImagePart(slws.BackgroundPictureImagePartType);
                    if (slws.BackgroundPictureDataIsInFile.Value)
                    {
                        using (FileStream fs = new FileStream(slws.BackgroundPictureFileName, FileMode.Open))
                        {
                            imgp.FeedData(fs);
                        }
                    }
                    else
                    {
                        using (MemoryStream ms = new MemoryStream(slws.BackgroundPictureByteData))
                        {
                            imgp.FeedData(ms);
                        }
                    }

                    oxw.WriteElement(new Picture() { Id = wsp.GetIdOfPart(imgp) });
                }
                #endregion

                if (slws.Tables.Count > 0)
                {
                    // If it's a new worksheet, ALL tables are new tables...
                    oxw.WriteStartElement(new TableParts() { Count = (uint)slws.Tables.Count });
                    TableDefinitionPart tdp;
                    foreach (SLTable t in slws.Tables)
                    {
                        tdp = wsp.AddNewPart<TableDefinitionPart>();
                        tdp.Table = t.ToTable();
                        oxw.WriteElement(new TablePart() { Id = wsp.GetIdOfPart(tdp) });
                    }
                    oxw.WriteEndElement();
                }

                #region 2010 Conditional formatting, Sparklines and possibly other extensions
                slws.RefreshSparklineGroups();

                if (slws.ConditionalFormattings2010.Count > 0
                    || slws.SparklineGroups.Count > 0)
                {
                    oxw.WriteStartElement(new WorksheetExtensionList());

                    if (slws.ConditionalFormattings2010.Count > 0)
                    {
                        oxa = new List<OpenXmlAttribute>();
                        oxa.Add(new OpenXmlAttribute("xmlns:x14", null, SLConstants.NamespaceX14));
                        // this is important! Apparently extensions are tied to a URI that Microsoft uses.
                        oxa.Add(new OpenXmlAttribute("uri", null, SLConstants.ConditionalFormattingExtensionUri));
                        oxw.WriteStartElement(new WorksheetExtension(), oxa);

                        oxw.WriteStartElement(new X14.ConditionalFormattings());
                        foreach (SLConditionalFormatting2010 cf2010 in slws.ConditionalFormattings2010)
                        {
                            oxw.WriteElement(cf2010.ToConditionalFormatting());
                        }
                        oxw.WriteEndElement();

                        oxw.WriteEndElement();
                    }

                    if (slws.SparklineGroups.Count > 0)
                    {
                        oxa = new List<OpenXmlAttribute>();
                        oxa.Add(new OpenXmlAttribute("xmlns:x14", null, SLConstants.NamespaceX14));
                        // this is important! Apparently extensions are tied to a URI that Microsoft uses.
                        oxa.Add(new OpenXmlAttribute("uri", null, SLConstants.SparklineExtensionUri));
                        oxw.WriteStartElement(new WorksheetExtension(), oxa);

                        oxa = new List<OpenXmlAttribute>();
                        oxa.Add(new OpenXmlAttribute("xmlns:xm", null, SLConstants.NamespaceXm));
                        oxw.WriteStartElement(new X14.SparklineGroups(), oxa);
                        foreach (SLSparklineGroup spkgrp in slws.SparklineGroups)
                        {
                            oxw.WriteElement(spkgrp.ToSparklineGroup());
                        }
                        oxw.WriteEndElement();

                        oxw.WriteEndElement();
                    }

                    oxw.WriteEndElement();
                }
                #endregion

                oxw.WriteEndElement();
                oxw.Dispose();
                // end of writing for new worksheet
            }
        }
        /// <summary>
        /// Adds all the comments defined in the List to the current worksheet.
        /// </summary>
        /// <param name="worksheetPart">Worksheet Part of file.</param>
        /// <param name="commentsToAddList">List of CellComment which contain cell coordinates and the text value to set as comment.</param>
        public static void InsertComments(WorksheetPart worksheetPart, List <CellComment> commentsToAddList)
        {
            if (commentsToAddList.Any())
            {
                string commentsVmlXml = string.Empty;

                // Create all the comment VML Shape XML
                foreach (var commentToAdd in commentsToAddList)
                {
                    commentsVmlXml += GetCommentVMLShapeXML(ConvertColumnNumberToName(commentToAdd.col), commentToAdd.row.ToString());
                }

                // The VMLDrawingPart should contain all the definitions for how to draw every comment shape for the worksheet
                VmlDrawingPart vmlDrawingPart = worksheetPart.AddNewPart <VmlDrawingPart>();
                using (XmlTextWriter writer = new XmlTextWriter(vmlDrawingPart.GetStream(FileMode.Create), Encoding.UTF8))
                {
                    writer.WriteRaw("<xml xmlns:v=\"urn:schemas-microsoft-com:vml\"\r\n xmlns:o=\"urn:schemas-microsoft-com:office:office\"\r\n xmlns:x=\"urn:schemas-microsoft-com:office:excel\">\r\n <o:shapelayout v:ext=\"edit\">\r\n  <o:idmap v:ext=\"edit\" data=\"1\"/>\r\n" +
                                    "</o:shapelayout><v:shapetype id=\"_x0000_t202\" coordsize=\"21600,21600\" o:spt=\"202\"\r\n  path=\"m,l,21600r21600,l21600,xe\">\r\n  <v:stroke joinstyle=\"miter\"/>\r\n  <v:path gradientshapeok=\"t\" o:connecttype=\"rect\"/>\r\n </v:shapetype>"
                                    + commentsVmlXml + "</xml>");
                }

                // Create the comment elements
                foreach (var commentToAdd in commentsToAddList)
                {
                    WorksheetCommentsPart worksheetCommentsPart = worksheetPart.WorksheetCommentsPart ?? worksheetPart.AddNewPart <WorksheetCommentsPart>();

                    // We only want one legacy drawing element per worksheet for comments
                    if (worksheetPart.Worksheet.Descendants <LegacyDrawing>().SingleOrDefault() == null)
                    {
                        string        vmlPartId     = worksheetPart.GetIdOfPart(vmlDrawingPart);
                        LegacyDrawing legacyDrawing = new LegacyDrawing()
                        {
                            Id = vmlPartId
                        };
                        worksheetPart.Worksheet.Append(legacyDrawing);
                    }

                    Comments comments;
                    bool     appendComments = false;
                    if (worksheetPart.WorksheetCommentsPart.Comments != null)
                    {
                        comments = worksheetPart.WorksheetCommentsPart.Comments;
                    }
                    else
                    {
                        comments       = new Comments();
                        appendComments = true;
                    }

                    // We only want one Author element per Comments element
                    if (worksheetPart.WorksheetCommentsPart.Comments == null)
                    {
                        Authors authors = new Authors();
                        Author  author  = new Author
                        {
                            Text = "Author Name"
                        };
                        authors.Append(author);
                        comments.Append(authors);
                    }

                    CommentList commentList;
                    bool        appendCommentList = false;
                    if (worksheetPart.WorksheetCommentsPart.Comments != null &&
                        worksheetPart.WorksheetCommentsPart.Comments.Descendants <CommentList>().SingleOrDefault() != null)
                    {
                        commentList = worksheetPart.WorksheetCommentsPart.Comments.Descendants <CommentList>().Single();
                    }
                    else
                    {
                        commentList       = new CommentList();
                        appendCommentList = true;
                    }
                    Comment comment = new Comment()
                    {
                        Reference = string.Concat(ConvertColumnNumberToName(commentToAdd.col), commentToAdd.row), AuthorId = (UInt32Value)0U
                    };

                    CommentText commentTextElement = new CommentText();

                    Run run = new Run();

                    RunProperties runProperties = new RunProperties();
                    Bold          bold          = new Bold();
                    FontSize      fontSize      = new FontSize()
                    {
                        Val = 8D
                    };
                    Color color = new Color()
                    {
                        Indexed = (UInt32Value)81U
                    };
                    RunFont runFont = new RunFont()
                    {
                        Val = "Tahoma"
                    };
                    RunPropertyCharSet runPropertyCharSet = new RunPropertyCharSet()
                    {
                        Val = 1
                    };

                    runProperties.Append(bold);
                    runProperties.Append(fontSize);
                    runProperties.Append(color);
                    runProperties.Append(runFont);
                    runProperties.Append(runPropertyCharSet);
                    Text text = new Text
                    {
                        Text = commentToAdd.text
                    };

                    run.Append(runProperties);
                    run.Append(text);

                    commentTextElement.Append(run);
                    comment.Append(commentTextElement);
                    commentList.Append(comment);

                    // Only append the Comment List if this is the first time adding a comment
                    if (appendCommentList)
                    {
                        comments.Append(commentList);
                    }

                    // Only append the Comments if this is the first time adding Comments
                    if (appendComments)
                    {
                        worksheetCommentsPart.Comments = comments;
                    }
                }
            }
        }