ChatGPT-4o vs. ChatGPT-5.1 — I tested both and the winner surprised me

I put ChatGPT-4o and 5.1 through 9 real-world tests — from logic puzzles to coding, writing and image analysis.
How-To Geek on MSN

How to use the LET function in Microsoft Excel

If you're tired of repeated calculations, hard-to-read formulas, and sluggish Excel worksheets, the LET function is your ...