mizzrizz Wrote:
Or, is this too challenging a task for Excel and should I pull out the
bug guns (VBA)?

this would be best handled in Access. What you don't say is how the
data in one row changes across columns. How many columns are there?
Can data change in different columns, or does it change in all columns?
Is there one reference column that you could check, and if that column
has changed, then you know definitely something has changed?

Matt


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