SUM is the spreadsheet equivalent of an open invite: it welcomes everything into the total, whether it belongs there or not.

Array formulas let you perform calculations across entire ranges of data in a single formula. Hence, you can handle lightning-fast lookups, filtering, and sorting with just one po ...

Q. I read the June 2020 JofA article on SUMIF. I have tried to use it in my Excel spreadsheet, but it won’t work since I have multiple criteria. Is there a way to get SUMIF to work if you have more ...