I have a very large file (24mb) that was originally created in Excel
XP, and recently modified in Excel 2003. When users who have Excel
2000 try to open this file it usually takes about 5 minutes to open
whereas it usually takes about 20 seconds to open in Excel XP and 2003.
Then if they try to save the file, an error message pops up that says
the file was not saved.

Thanks,

Brent