The currents of the oceans, the roiling surface of the sun, and the clouds of smoke billowing off a forest fire—all are ...

I used to be clunky in Microsoft Excel not knowing the most efficient way to do things. That was before I learned some ...

From hidden rows to sheet protection passwords, Excel's "privacy" features are easily bypassed—encryption and deletion are much more watertight.

Lock dynamic arrays into fixed shapes so dashboards stay neat, tables stack cleanly, and templates keep their layout.