Exception (HRESULT: 0x800AC472) when using Excel.Worksheet.Select after calling Excel.Workbook.SaveAs

Question

I\'m opening an xlsx file and saving each sheet into a csv file.

Here is the relevant code for the saving:

int i=0;
foreach (Excel.Worksheet s in app         


        

Answer 1

I think this is a binding issue, I just surrounded every call (SaveAs, Select) with a:

bool failed = false;
do
{
    try
    {
        // Call goes here
        failed = false;
    }
    catch (System.Runtime.InteropServices.COMException e)
    {
        failed = true;
    }
    System.Threading.Thread.Sleep(10);
} while (failed);