Shlomo,

In the Validation dialog, choose "Custom" from the Allow list,
and use the formula
=SUM(F:F)<=100


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com



"shlomo" wrote in message
...

I know that its possable to do with validation that I should
not be able
to enter in column f:f that the total should be more then 100


--
shlomo
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