REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a ...

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

Fragmenting your data across many Excel tabs is a common habit that silently kills file performance, introduces hidden errors ...

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

Kirk Siegler is a national correspondent for NPR News. As a roving reporter, he covers the western U.S. with an emphasis on rural issues, water and the effects of climate change on smaller communities ...

I write about money. I’ve been reviewing tax software and services as a freelancer for PCMag since 1993. Along the way, I took on reviews of other types of business and personal finance technology.

This is how the news should sound. Twenty minutes a day, five days a week. Hosted by Michael Barbaro, Rachel Abrams and Natalie Kitroeff, and powered by New York Times journalism. Sign up to get each ...

“If you want to bully people, particularly the free press ... there’s a price to pay. And that price is going to be in the millions.” ...