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Interactive Excel error lab.

Pick #REF!, #VALUE!, #DIV/0!, #SPILL!, or #CALC!. Inspect the broken sheet, copy the fix, then send the example to the formula fixer.

#VALUE!

C2

=A2*B2
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#VALUE!

Text sitting in a math cell

#VALUE! means Excel received the wrong type of argument. Here A2 looks like a quantity, but it is stored as text, so multiplication cannot run until the number is coerced.

Sample broken formula

=A2*B2

Paste-ready fix

=VALUE(A2)*B2

Convert imported text numbers with VALUE (or multiply by 1) before the math. Fix the type instead of wrapping everything in IFERROR.

The fixer opens with this broken formula, #VALUE!, and the expected result already filled in. Open this station.

Five errors, one worksheet

The written error guides stay in place for search and deep reading. Use this lab when you want a sample you can click, copy, and hand to the fixer.

Error lab FAQ

How is the error lab different from the Excel error guides?

The guides explain each error in writing. The lab is a worksheet you can click: a broken sample, a paste-ready fix, and a button that loads that example into the formula fixer.

Which Excel errors can I load into the fixer?

The lab covers #REF!, #VALUE!, #DIV/0!, #SPILL!, and #CALC!. Each station sends the broken formula, the exact error, and the expected result.

Does sending an example run the fixer automatically?

No. The formula fixer opens already filled in. Review the fields, then submit when you want a correction.

Open the formula fixer empty