Question

I develop “Excel 2007 add-in” and use “Microsoft.Office.Interop.Excel.Application.ActiveSheet”. How can I save it in separate file?

Answer 1

I found post explaining how to save active sheet in VB.NET:

Sub test()
  ActiveSheet.Copy
  ActiveWorkbook.SaveAs Filename:="C:\MyFolder\MySubFolder\Test.xls"
  ActiveWorkbook.Close
End Sub

But you can try this logic in C#, switching active sheets and saving each separately

This should save them in seperate workbooks…

Sub test()

Dim iNoSheets As Integer
Dim i As Integer

iNoSheets = Worksheets.Count

For i = 1 To iNoSheets
Worksheets(i).Activate
ActiveSheet.Copy
ActiveWorkbook.SaveAs Filename:="C:\Test" & i & ".xls"
ActiveWorkbook.Close
Next

End Sub 

And now in C#:

public void SaveSheets()
{
for(int i = 0; i < Worksheets.Count; i++)
{
Worksheets[i].Activate();
ActiveSheet.Copy();
ActiveWorkbook.SaveAs(string.Format(@"C:\sheet{0}.xlsx",i));
ActiveWorkbook.Close();
}
}