see http://www.contextures.com/xlDataVal01.html for a starter

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HTH

Bob Phillips

"Franz" wrote in message
...
"AhmtDY" ha scritto nel messaggio


Is it possible to add a constraint that makes a cell cannot be equal
to any number or any other cell.
i.e. (A1<3) or (A1<A2) or (A1<A2:A5)


You can try using Data Validation.

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Hoping to be helpful...

Regards

Franz

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