Learn Excel basics and explore AI-powered tools to simplify data tasks. Perfect for beginners looking to boost productivity ...

Tools like Excel and Google Sheets are ubiquitous these days, and learning how to use them more effectively will quickly ...

As of October 2025, there's an 80% discount on 5TB of Internxt's lifetime cloud storage available, with the final cost being just €380 (the offer wasn't presented to us in any other currency, ...

Learn how DROP, REDUCE, LAMBDA, and STACK make Excel arrays update automatically, split text, and stack filtered results ...

Excel has plenty of built-in functions for calculations, but some of the most useful ones don't crunch numbers at all—they reveal information about your spreadsheet itself. The INFO and CELL functions ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Some active ...

It's the stuff movies are made of: After a blow to the head, a person wanders aimlessly, unable to remember who they are or where they came from. While such sudden, profound loss of memory is rare, ...