Stop painting cells and use conditional formatting to build accessible, formula-ready, and automated Excel spreadsheets.

Excel isn't hard, just learn the right tricks early enough.

Create a self-updating Excel checklist with checkboxes, IFS due-date priority, and a progress data bar for faster tracking.

WCAG 2.1 extends requirements to graphics and interface components, requiring at least 3:1 contrast. Level AAA raises expectations to 7:1 for normal text. Large text is defined as 14-point bold ...

Drop-down lists in Excel are a great way to speed up data entry, keep your sheet tidy, and avoid typos. No formulas required!

Our game is close to being complete -- or at least complete enough that it can be fun to play. All that remains is removing full rows (since filling rows is the goal of Tetris) and keeping score. This ...