Excel processes the range (A1:A10) by converting it into an array in memory. This array is what Excel works with to calculate the sum. The distinction is subtle but important: while the range is the ...

I've been gradually building up my Excel shortcut knowledge over time, and it has genuinely helped me work with spreadsheets more efficiently. Once you start incorporating shortcuts into your daily ...

Wife knew before they married that the letter writer was never big on Christmas, so why is she calling it “selfish” now? Carolyn Hax writes a daily advice column for The Post and has a weekly live ...

Michelle Singletary writes the nationally syndicated personal finance column “The Color of Money,” which appears in The Washington Post on Wednesdays and Sundays. If you have a personal finance ...

Are you confident that your company is effectively handling potential customers’ online queries? Think hard. Our research shows that most companies are not responding nearly fast enough. Kristina ...

Being thankful is the ultimate win-win: If the person being thanked feels happy, the person doing the thanking feels happier still.

Australia just became the first nation to ban social media for under-16s, and the enforcement rules reveal something bigger. Platforms must deploy age inference, selfie… ...

My Mother-in-Law Is Torturing the Entire Family With Her Beloved “Hobby.” I’m the Only One Willing to Do Something About It.