Excel 2007 upgrade error

Question

In a Windows Forms application I'm saving some data to an Excel file. Until now, i was using Excel 2003 and saving as the file as xls. with this code :

exportFile.SaveAs(strPath, Excel.XlFileFormat.xlWorkbookNormal, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlShared, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

I've upgraded to Excel 2007 and now I want to save the data as xlsx, so i've changed the same line to :

exportFile.SaveAs(strPath, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlShared, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);

But now, i get an exception on that line , "Exception from HRESULT: 0x800A03EC" Do you have any idea what am i doing wrong ?

Thank you!

Answer 1

I've tried @david heffernan's solution and worked. XlSaveAsAccessMode.xlNoChange did the trick