Drop-down lists in Excel are a great way to speed up data entry, keep your sheet tidy, and avoid typos. No formulas required!

Master R-Squared calculation in Excel. Get formula tips, expert advice, and avoid errors for precise financial analysis.

Earth is about to see three total solar eclipses in just under two years, with each successive path of totality moving west to east across the globe. Here's everything you need to know to plan an ...

In June, WSJ’s Joanna Stern went inside a data center to trace the journey of an AI prompt and then grilled up some steaks to show just how much energy it takes to make an AI image and video. Photo: ...

Thousands of files related to the investigation into sex trafficker Jeffrey Epstein are publicly available on a Department of Justice webpage titled "Epstein Library" Charna Flam is a writer-reporter ...

The Justice Department released a portion of the Jeffrey Epstein files to meet the Friday deadline established in a congressional bill with a series of downloadable files related to the convicted sex ...

The searchable database published by the Justice Department is broken into multiple categories. By Michael Gold Covering Congress The Justice Department on Friday released a set of publicly ...

The mysterious interstellar comet 3I/ATLAS is making its closest approach to Earth on Friday, offering scientists a rare opportunity to study an object born around another star. Space agencies are ...

Spotify released its annual year-end Spotify Wrapped listener summaries on December 3, 2025. Each December, the streaming giant compiles personalized lists of its users’ favorite music and podcasts — ...

AT&T customers could be owed up to $7,500 as part of a settlement. Millions of consumers’ personal information was exposed by a pair of past data breaches that weren’t disclosed until 2024, leading ...

Q. How do the TEXTBEFORE and TEXTAFTER functions in Excel work? A. Excel’s TEXTBEFORE and TEXTAFTER functions allow users to quickly split up text in ways that used to require combinations of ...

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...