Frequently asked questions
If something here is unclear, or your question is missing, tell us.
Do I need Excel installed to use this?
No. Everything runs in your browser. You write real formulas against real datasets without opening Excel, Google Sheets or anything else.
Is it free?
The core practice library will be free, including a daily challenge. A paid tier is planned later for advanced projects, interview simulation and certificates, but the fundamentals stay free.
How is this different from watching Excel tutorials?
You do the work. A video shows you someone else typing a formula; here you type it yourself, get it wrong, and find out precisely which part of your thinking was off. That gap is where the learning happens.
What happens when my answer is wrong?
You get told what specifically went wrong — a range that isn't locked, a lookup pointing at the wrong column, a single-condition function on a two-condition problem — rather than just 'incorrect'. The solution stays hidden unless you ask for it.
Which Excel functions are covered?
The library starts with the thirty functions that appear most in real work and in interviews: SUM, AVERAGE, COUNTIF, COUNTIFS, SUMIF, SUMIFS, IF, IFS, AND, OR, VLOOKUP, XLOOKUP, INDEX, MATCH, LEFT, RIGHT, MID, LEN, FIND, SEARCH, CONCAT, TEXTJOIN, TODAY, DATE, MIN, MAX, LARGE, SMALL and MEDIAN.
Will this help me pass an Excel interview?
That's what it's built for. Exercises use the situations interviews actually test — lookups across tables, conditional aggregation, cleaning a messy export — and a timed interview simulator is on the roadmap.
Does it work on a phone?
You can browse exercises, read explanations and track progress on a phone. Writing formulas in a spreadsheet grid genuinely needs a keyboard, so complex exercises are best on a laptop or desktop.