Understanding, organizing, and validating data directly affects the accuracy of stories. New tools make cleaning accessible ...

Excel offers no such constraint. If someone is determined to enter bad data, they can simply paste values over a validated ...

Learn when FILTER beats XLOOKUP, when it does not, and how to handle multiple matches, nth items, and multi-condition lookups with clear steps.

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 ...