In this excerpt from the new book 'Speak Data,' the Wharton professor and best-selling author shares his thoughts on how we ...
How-To Geek on MSN
Microsoft Excel isn't a database, please stop using it like one
Excel offers no such constraint. If someone is determined to enter bad data, they can simply paste values over a validated ...
The @ symbol can also appear in regular formulas outside of tables when Excel thinks you're trying to reference a single value from a range. If you see it pop up unexpectedly, it usually means Excel ...
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