Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.

Obsessing over model version matters less than workflow.

GPT-5.2 raises accuracy and speed, with 256K token context support, so you get clearer answers on long files and chats.

Shopping for the coolest tech gifts used to be simple. Grab a Sharper Image catalog, flip to a random page, point your finger at anything, and done. It's way more difficult now. For one, our phones do ...