About
CellKata is a free place to practise Excel formulas: you type real formulas into a live spreadsheet and get feedback straight away.
Why it exists
Excel speaks your language. In German Excel, SUM is SUMME; in Spanish Excel it's SUMA, and many countries separate arguments with ;, not ,. Most tutorials only show the English version, so learners get stuck on #NAME? errors. Here every exercise works the way your Excel does.
How it works
- Pick a lesson. Each one is a few short exercises on a small, real-looking sheet.
- Type the formula into the sheet, in your Excel language, and press Enter.
- It's checked straight away: the result, the functions you used and the cells you referred to. Hints and the answer are there when you need them.
Free, without an account
Every lesson is free and works without signing up; your progress stays in your browser. Signing in is optional: it keeps your progress across devices and puts your points on today's leaderboard.
What you'll learn
14 modules, from your first cell reference to lookups, text, dates, statistics, dynamic arrays and fixing errors, plus a reference page for every function used. The lessons and their data are written for this site.
What's next
More languages for the lessons, and a SQL course that works the same way.
Questions or ideas? Get in touch.
Microsoft and Excel are trademarks of Microsoft Corporation. This site isn't affiliated with or endorsed by Microsoft.