Why MS Excel crashes and closes during Worksheet_Change Sub procedure?

Question

I am having a problem with Excel crashing, when I run VBA code on an excel sheet.
I\'m trying to add the following formula on worksheet change:

Private S         


        

Answer 1

Excel was crashing, not the VBA function.
The events were not disabled and the call stack was filled by an infinite loop of OnChange events.
A little advice that helps finding this type of errors: set a breakpoint on the first line of the event, then execute it step by step pressing F8.