Hi guys,
I think I need some help.
I am working on a little sheet which should sum up all numbers within a specific periode of time.
In my case I want to sum up for example all emails sent within the first month of a year, or the second month and so on.
I tried it with the =sumif function but got no result.
It would be great if it would be dynamic. As I try to make a template for the next years - just by changing the year.
I also added a demo file.
Thank you in advance!
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