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

Learn Paste Special math, Flash Fill patterns, Go To Special filters, and the F4 shortcut to clean data fast and share Excel ...

REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a programming language. Instead of scattering your intermediate calculations ...

The asterisk (*) is the wildcard character that represents any sequence of characters, including when there are no characters at all. It’s the most flexible of the bunch, since it can replace any ...

Managing change during a major technology implementation requires a clear vision, strong communication, thoughtful process ...

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

Note to the reader: It's never a good idea to write anything when you're pissed off, whether it's a letter to an ex-girlfriend, an e-mail to your boss or, in this case, a sports column that will reach ...

Leana S. Wen, a Washington Post contributing columnist, writes a twice-weekly column on a broad range of topics with an emphasis on public health and health policy. She writes the newsletter The ...

The Supreme Court on Friday will consider the appeal of former Kentucky county clerk Kim Davis, who has asked the justices to overturn same-sex marriage rights. ABC News’ Steve Osunsami reports on the ...