Excel & Google Sheets, X-rayed

See exactly how every formula thinks.

Short tutorials that slow a formula down and show every step Excel takes to get the answer. Watch it evaluate, then try it yourself with a free practice file.

fx=XLOOKUP(1,(A2:A9=F2)*(B2:B9=G2),C2:C9)

How it works

  1. Pick a real problem. Lookups with two conditions, a stubborn #VALUE! error, sums between two dates.
  2. X-ray the formula. Each part is evaluated on screen, cell by cell, so you see why it works, not just that it does.
  3. Practice. Every video has a free spreadsheet with the same data, an empty answer cell and the solution on a second sheet.

Latest practice files