I need to enter a number in cells A1 through A20, if the sum of any of those cells is = to 12 then I want A1 through A20 fill color to be green. (1+9+2=12 or 12 in just one cell)
I have tried conditional formatting-New rule-Use a formula. The formula that I tried was =$A$1:$A$20=12 and format the cell green.
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