Error when opening workbook

Hi I have a workbook which was working fine until I added another 30 plus worksheets and linking and formulas.

It now comes up with Excel has encountered a problem and will recover etc etc.....

How can I find out what is going wrong??????

Pulling the hair out does not work.!!!

Go back to your archived copy and add one sheet at a time until the problem occurs. That should give you a clue as to where the problem is comming from.

I just knew there was'nt going to be an easy fix for this, thanks for the suggestion