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You need to know what the double unary operator (--) does in Excel

It's marginally more efficient: While the difference is negligible, the double-unary operator can be more efficient in ...
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How to Use Boolean Logic in Microsoft Excel

If you've encountered the word "Boolean" but aren't quite sure what it means, this is the guide for you! From definitions of key terms to easy-to-follow examples, here's everything you need to know ...