Bill,
You can't ordinarily use SUMIF with multiple conditions.
Suppose that you have data in A, in B, and in C. And suppose that you want to sum values in C if the corresponding value in A is an X and the one in B is Y. The formula that can do that is:
=SUMPRODUCT((A1:A100="X")*(B1:B100="Y")*(C1:C100))
Aladin
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I think you can use an array formula to solve your problem. See Mr Excel's tip on this. HTH
http://www.mrexcel.com/tip031.shtml">http://www.mrexcel.com/tip031.shtml
I think you can use an array formula to solve your problem. See Mr Excel's tip on this. HTH
http://www.mrexcel.com/tip031.shtml">http://www.mrexcel.com/tip031.shtml
Another - quite simple and crude - workaround is to create "composite keys" of the elements that you want to sumif and use those as your sumif criteria. You would combine them by concatentaing the criteria strings. This entails creating new rows or columns depending on the setup of your spreadsheet, but works quite well if you do not have too many of them to manage + you can use asmany keys as you want.