Sum the time for a criteria in a range.
 

I would like to look back the last 90 days in a "a"column after entering a
specific date.
In that range I would like to add flight times "c"column for a specific
criteria "b"column.
How do I put this in a formula. Is it possible at all?

Sum the time for a criteria in a range.
 

Hi
see:
http://www.xldynamic.com/source/xld.SUMPRODUCT.html

--
Regards
Frank Kabel
Frankfurt, Germany


Rene wrote:
I would like to look back the last 90 days in a "a"column after
entering a specific date.
In that range I would like to add flight times "c"column for a
specific criteria "b"column.
How do I put this in a formula. Is it possible at all?