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Errors & fixes

What each Excel error means and the fix that usually works.

Errors & fixesPractice sheet

#DIV/0! error in Excel: what it means and how to fix it

#DIV/0! means a formula divided by zero or by an empty cell. Why it happens, averages of nothing included, and how to show a clean result, with a practice sheet.

2 min read · Updated
Errors & fixesPractice sheet

#NAME? error in Excel: what it means and how to fix it

#NAME? means Excel doesn't recognise a word in your formula: a misspelt function, text without quotes, a missing colon. Find it and fix it, with a practice sheet.

2 min read · Updated
Errors & fixesPractice sheet

#NUM! error in Excel: what it means and how to fix it

#NUM! means a calculation has no valid answer: an IRR with no rate to find, a square root of a negative. Each cause and its fix, with a practice sheet.

2 min read · Updated
Errors & fixesPractice sheet

#N/A error in Excel: what it means and how to fix it

#N/A means a lookup didn't find what it was looking for. Here are the six usual causes, how to spot each one on the sheet, and the fix, with a practice sheet.

2 min read · Updated

Reading is step one. Writing the formula is the skill.

Practise in a live grid that grades what your formula calculates, with a specific hint when it's wrong.

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