delete excel worksheets programmatically

Question

I have an excel workbook with many, many sheets. I want to delete all the sheets except for three of them.

Specifically, i would like to know if there is a way to re

Answer 1

xlApp.DisplayAlerts = false;
for (int i = xlApp.ActiveWorkbook.Worksheets.Count; i > 0 ; i--)
{
    Worksheet wkSheet = (Worksheet)xlApp.ActiveWorkbook.Worksheets[i];
    if (wkSheet.Name == "NameOfSheetToDelete")
    {
        wkSheet.Delete();
    }
}
xlApp.DisplayAlerts = true;