Hello Bob - thanks a lot for yuor reply
I was tring to use it, but I've the same problem I experienced befor
posting the question (I get a #VALUE as result).. could be it is due t
the fact that the area to which I apply the "SUMPRODUCT" function
contains characters. To be more clear, I'm posting a copy of th
spreadsheet with a more accurate sample.
If you can have a look it would be great .

thanks in adavance
*pima

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