I'm in the middle of getting my xl 2002 workbooks to also work under xl
2000. The company we are buying overnighted to me a PC with xl 2000.

One problem I'm getting is on one very large workbook Excel is giving me a
"File error. Some number formats may have been lost." upon startup. I did
some google searching and I find that others have gotten this when mailing
a 2002 workbook to a 2000 user. Some mention the workbook being corrupted.
Unlikely. Then I saw some messages about having too many custom formats. If
this is so, then I can delete the numerous unused ones listed. But nothing
I found gave any definitive answer. Any ideas?

One idea I have is to write a program that extracts all the formats and
puts them into a workbook as strings. Run on each system, then compare
those two workbooks. (The xl 2000 PC was connected to our network.)

Don <www.donwiss.com (e-mail link at home page bottom).