Raf wrote...
I attemp to open up a workbook and Excel crashes. Only clue is questions
whether to send error report to Microsoft. The file is 49 meg in size
running Win 2000 OS

Did you create this 49MB file or did you receive it from someone else?
How much real RAM do you have on your PC? How much is free before you
load Excel?

49MB is getting pretty large, and there could be many things that could
cause Excel to crash on files this large. My first recommendation would
be trying to open it on a different PC with more RAM and, if possible,
Excel 2003. If that also fails, then you may have an unfixable
corrupted file.