public void TestFillDataArray()
        {
            var path = Path.Combine(FileHelper.TempPath, "openxml1.xlsx");

            var data = new double[2, 2];

            data[0, 0] = 1.5;
            data[0, 1] = 2.5;
            data[1, 1] = 3.5;
            data[1, 0] = 4.5;


            var header = new[] { "Column1", "Column2" };

            var oe = new XlsxOpenXml();

            oe.Status            += ExcelStatus;
            oe.Error             += ExcelError;
            oe.NumberFormatDouble = "#,##0.000000";
            oe.NewWorkbook(path);
            //oe.SelectSheet("Tabelle1");


            oe.NewSheet("Daten1");

            //oe.SelectSheetFirst("Daten");
            //oe.SelectSheet(1);
            ////oe.SelectRange("A1");
            oe.SelectRange(1, 1);
            oe.Style = XlsxStyles.Header;
            oe.SetValue("Hallo Welt1");
            oe.FillDataArray(data, header, 4, 1);

            oe.NewSheet("Daten2");

            //oe.SelectSheetFirst("Daten");
            //oe.SelectSheet(1);
            ////oe.SelectRange("A1");
            oe.SelectRange(1, 1);
            oe.Style = XlsxStyles.Header;
            oe.SetValue("Hallo Welt2");
            oe.FillDataArray(data, header, 4, 1);

            oe.Quit();

            FileHelper.StartExcel(path);
        }
        public void TestFillDataTableSelectSheet()
        {
            var path = Path.Combine(FileHelper.TempPath, "openxml.xlsx");

            if (File.Exists(path))
            {
                File.Delete(path);
            }

            var db = SqlClientConnManager.GetConnManager("Data Source=.\\SQLEXPRESS;Initial Catalog=MediaDb;Integrated Security=True");
            var dt = db.GetDataTable("select top 1000 * from settings");

            var oe = new XlsxOpenXml();

            oe.Status            += ExcelStatus;
            oe.Error             += ExcelError;
            oe.NumberFormatDouble = "#,##0.000000";
            oe.NewWorkbook(path);

            //oe.NewSheet("Daten");
            oe.SelectSheet("Tabelle1");



            ////oe.SelectSheetFirst("Daten");
            ////oe.SelectSheet(1);
            //////oe.SelectRange("A1");
            oe.SelectRange(1, 1);
            oe.Style = XlsxStyles.Header;
            oe.SetValue("Hallo Welt1");
            oe.FillDataTable(dt, 4, 1);

            //oe.NewSheet("Daten2");

            //oe.SelectSheetFirst("Daten");
            //oe.SelectSheet(1);
            ////oe.SelectRange("A1");
            oe.SelectRange(1, 1);
            oe.Style = XlsxStyles.Header;
            oe.SetValue("Hallo Welt2");
            oe.FillDataTable(dt, 4, 1);

            oe.Quit();

            FileHelper.StartExcel(path);
        }