public Reader(string xlsxFileName)
{
filename = xlsxFileName;
var zipFiles = new FilesFromZip(new ZipFile(new FileStream(xlsxFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)));
xmlFiles = zipFiles;
resource = zipFiles;
const string xlDir = "xl";
const string sCalcChainFile = "calcChain.xml";
if (xmlFiles.FileExists(Path.Combine(xlDir, sCalcChainFile)))
{
xmlFiles.RewriteFile(Path.Combine(xlDir, sCalcChainFile), null); // "delete" file
XmlItem rel;
var sRelsFile = Path.Combine(xlDir, "_rels", "workbook.xml.rels");
long nRelsFileSize;
using (var stream = xmlFiles.OpenReadFile(sRelsFile))
{
nRelsFileSize = stream.Length;
using (var reader = XmlReader.Create(stream))
rel = XmlItem.Read(reader).First();
}
using (var stream = new MemoryStream((int)nRelsFileSize))
{
using (var writer = new XmlTextWriter(stream, Encoding.UTF8))
{
writer.WriteStartDocument();
rel.WriteStartElementAndAttrs(writer);
foreach (var r in rel.subItems)
{
if (!r.Attrs.Any(xa => xa.Name == "Target" && xa.Value == sCalcChainFile))
{
r.WritePart(writer);
}
}
writer.WriteEndElement();
writer.WriteEndDocument();
}
xmlFiles.RewriteFile(sRelsFile, stream.GetBuffer());
}
}
using (var stream = xmlFiles.OpenReadFile(Path.Combine(xlDir, "styles.xml")))
using (var reader = XmlReader.Create(stream))
styles = StyleInfo.ReadStyles(XmlItem.Read(reader));
using (var stream = xmlFiles.OpenReadFile(Path.Combine(xlDir, "sharedStrings.xml")))
stringTable = ReadStringTable(stream).ToArray();
var sheetsDir = Path.Combine(xlDir, "worksheets");
var lstSheetsNames = new List <string>(8);
using (var stream = xmlFiles.OpenReadFile(Path.Combine(xlDir, "workbook.xml")))
using (var reader = XmlReader.Create(stream))
{
var wbook = XmlItem.Read(reader).ToArray();
var sheets = wbook.First(x => x.Name == "workbook").subItems.First(x => x.Name == "sheets").subItems.Where(x => x.Name == "sheet");
foreach (var name in sheets.Select(x => x.Attrs.First(a => a.Name == "name").Value))
{
lstSheetsNames.Add(name);
}
}
sheetNames = lstSheetsNames.ToArray();
sheetFiles = xmlFiles.EnumerateFiles(sheetsDir)
// sort filenames like "xl/worksheets/sheet1.xml", ..., "xl/worksheets/sheet10.xml" in numerical order
.OrderBy(sf =>
{
var s = sf.Substring(19, sf.Length - 23);
return(int.Parse(s));
}).ToArray();
}