Hi,
I have a quite stupid problm but I don't know how to solve it quickly.
I have to calculate the weekly average for all the weeks of an year ( 52-53 weeks 9 and I have the data in days all in a column ( A)... how should I write a quick formula to copy in all the cell , insteda that doing =average(a1:a7), average(a8;a14) and so on? Thank you very much
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