How-To Geek on MSN

Excel's Custom Data Validation: A Trick You Didn't Know You Needed

If you've used data validation in Excel before, you probably selected the relevant cells, clicked "Data Validation" in the ...

Reverse COUNTIFS : Excel Trick Will Change How You Analyze Data

Learn how the reverse COUNTIFS method can simplify data checks, save time, and enhance your Excel skills with binary outputs.
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