Spell check, but for your spreadsheet formulas.
Sheet Health Check is a Google Sheets add-on that scans your entire spreadsheet in seconds and finds problems you'd never catch manually.
Open Sheet Health Check from the menu, click "Run Health Check," and get your health score with a categorized list of every issue. Click any issue to jump directly to the problem cell.
Sheet Health Check runs entirely within Google's infrastructure. Your data never leaves Google's servers. No external APIs, no tracking, no data collection.