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

In my case there was a same exception and checked task manager, there was a lot EXCEL.exe, Kill them and then worked fine