Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Portable power stations are handy for backup power during outages, off-grid electricity for an RV, or simply charging your laptop and phone while working remotely. They’re effectively large bundles of ...