It's fairly well-known that a good way to reduce the size of an Excel
spreadsheet is to use the Tools / Share Workbook command to share it, reduce
or eliminate the number of days change history from 30, and then un-share it.

My problem is: 30 days seems to be a default -- even if you save the
workbook with one day and re-open it, it reverts back to 30. I suppose I
could write an Auto_New routine in Book.xlt that sets KeepChangeHistory or
ChangeHistoryDuration, or calls PurgeChangeHistoryNow, but is there a better
way, e.g., by (dare I say it?) modifying the registry?


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Andy Smith
Senior Systems Analyst
Standard & Poor''s, NYC