How can I write a formula to add the numbers from column C, whereby the sum should be written in columns D-L (and I should add only those numbers that are in the row with the letter R)? The screenshot will explain what I mean.
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How can I write a formula to add the numbers from column C, whereby the sum should be written in columns D-L (and I should add only those numbers that are in the row with the letter R)? The screenshot will explain what I mean.