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I'm using CsvHelper.Excel.ExcelWriter class from Nuget Pack (CsvHelper.Excel.Core).

It works if I only try to write on FileStream, but it doens't on MemoryStream.

It Works

 using (var w = new CsvHelper.Excel.ExcelWriter("C:\\temp\\test.xlsx", CultureInfo.InvariantCulture))
 {
     await w.WriteRecordsAsync<MyItem>(items);
     w.Dispose();
 }

It doesn't work

 var mm = new MemoryStream();
 var w = new CsvHelper.Excel.ExcelWriter(mm, CultureInfo.InvariantCulture, true);
 await w.WriteRecordsAsync<MyItem>(items);
 mm.Flush();
 w.Dispose();

Any suggestions?

Improve this question
2
  • as is the code flushes the memorystream. Have you tried mm.Position=0; instead? What are you doing with the memory? Commented May 23, 2024 at 16:59
  • MemoryStream is empty, Position is 0, Length also. Simply, it doesn't work. It's a bug. Commented May 25, 2024 at 9:43
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