Help: Document Versioning in Excel 2007

D

Dab

Is there a way to automatically create cyclical versions of documents in
Excel 2007?

I'd like to have version automatically created every x minutes so that if a
catastrophe happens, I could go back to a previous version (I create
versions manually, but that relies on me to remember to save a copy
periodically). Ideally, there would be x number of version where the oldest
version would drop off when a new version is created.
Thanks for any advice.
 
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