I want to sum 3 columns of every other row in Excel.
I know how to do the "sum every 3 columns" part:
How do I apply this formula so it sums every other row, starting with A40 ?
So A40, A42, A43 etc.
Basically, if you look at this picture, I am looking for formula, that would allow to sum every red cell in N3 and then be copy-pasted to sum every yellow cell in O3.