Hi
I have data in Cell A1,A2, C1,C2 E1,E2
A C E
10 15 12
1 0 1

I WANT THE SUM OF CELLS A1 & C1 ONLY IF THE VALUE IN A2 AND C2 IS NOT ZERO
THIS IS AN EXAMPLE. ACTUALLY THE NUMBER OF CELLS THAT I NEED SUM OF ARE MORE
THAN 20 IN THE SHEET. BUT THEY ARE NOT IN ORDER