Excel versioning issues

Hello All:

Our office uses Office 2007. We've had a Group Policy to always save EXCEL files an in the 2003 .xls format (so we can trade with clients and attorneys who still have 2003 verision without them having to get the converter, or us having to decide how to save).

In the last week or so, we've been having some excel files (created by us in version 2007 but saved as an .xls) become corrupt while the user is working on them.  From what the users tell us, it happens while working in the spreadsheet - excel just quits, and then the file cannot be reopened.

We are making the guess that while they are working on it, they might try to do a save - and excel gets confused as to what version is should save to while it's still open....the error message (although no one can provide us with one) apparently does mention versioning according to one user - but we have no solid error message yet.

I would like to turn off the Group Policy, I would think that either the world has caught up with 2007 by now, or 2003 has the ability to convert xlsx files on it's own (that is my thought anyway) - but this corruption issue scares me a bit.  

Since I'm sure the individual user Excel settings won't change if I simply turn off the group policy- I would have to rewrite the existing policy to save as .xlsx files in order to get everyone on the same page....My fear is that IF the corruption issues are a versioning result, more corruption may happen if any user opens an already saved .xls file to pick up work, and when they go to save and close it will corrupt the file.

Does anyone have any experience with this?  Before I do anything, I just want to know the consequences.

Thanks.
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kolson14Asked:
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zorvek (Kevin Jones)ConsultantCommented:
It's very unlikely that Excel is confusing the version formats. It's much more likely that you simply have a corrupt workbook. Is the workbook in sharing mode? Does it contain any ActiveX controls on any worksheets? Is there VBA code behind it? Does it have an unusual number of formulas or a high number of unique cell formats?

Have you tried to save the workbook in 2007 format and then back to 97-2003 format?

Kevin
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kolson14Author Commented:
There are no Activex controls, and we've learned our lesson about sharing workbooks, as they HAVE become corrupt.  But it IS possible someone may have a local macro they created the sheet with that the other person is editing and doesn't know it's there....I can check that out.

So you are saying there shouldn't be any issues with versioning?  I'm glad to hear it because I felt as if I was in a bit of a quandry.  I'll bet there are some macros involved that people don't know are there....that's probably the case.

Thanks.
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zorvek (Kevin Jones)ConsultantCommented:
Workbooks can become corrupt for other reasons. Try saving the workbook in 2007 format and then back to 97-2003 format. That should clean up any junk.

Kevin
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