Error when opening created (or updated) excel file.

What steps will reproduce the problem?

  string file = "D:\\Test\\newdoc.xls";
  Workbook workbook = new Workbook();
  Worksheet worksheet = new Worksheet("First Sheet");
  worksheet.Cells[1, 1] = new Cell("Text string");
  workbook.Worksheets.Add(worksheet);
  workbook.Save(file);

What is the expected output? What do you see instead?

Excel complains there is unreadable content an gives an option to recover. 
However, once recovered, the content is there. 

Excel's error: 
  <?xml version="1.0" encoding="UTF-8" standalone="yes" ?> 
- <recoveryLog 
xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
  <logFileName>error044240_01.xml</logFileName> 
  <summary>Errors were detected in file 'D:\Test\newdoc.xls'</summary> 
- <additionalInfo>
  <info>Excel recovered your formulas and cell values, but some data may have been lost.</info> 
  </additionalInfo>
  </recoveryLog>

What version of the product are you using? On what operating system?

Windows 7 32bit, Excel 2007

Original issue reported on code.google.com by cic.le...@gmail.com on 2 Apr 2013 at 3:22

Attachments:

• Untitled.png
• Untitled2.png

Start with the provided reproduction using Workbook, Worksheet, Cell, and Workbook.Save to create D:\Test\newdoc.xls, then open it in Excel 2007 and inspect the recovery warning. Done means the generated workbook opens without Excel reporting unreadable content or needing recovery.