ISERROR in WPS on Windows FAQ

Last updated:July 20, 2026

This FAQ covers 3 common question types about syntax, result interpretation, and troubleshooting, plus a 3-term glossary for quick reference.

FAQ

What should I do if ISERROR shows an error after I enter it?

  1. Check whether the formula starts with =.
  2. Make sure the parentheses are paired correctly and the argument is complete.
  3. Confirm that the tested expression is written correctly, then press Enter again.

What is the difference between ISERROR and ISERR?

  1. ISERROR checks for all error values.
  2. ISERR usually does not include the #N/A error type.
  3. If you want broader error coverage, use ISERROR.

Why does ISERROR return FALSE when the result still looks wrong?

  1. FALSE only means the current value is not an error value.
  2. Check whether the source data in referenced cells has the expected format.
  3. If needed, combine ISERROR with IF or other logical checks for business rules.

Glossary

TermDefinition
ISERRORA logical function that checks whether a value or formula result is an error value.
Error valueAn abnormal spreadsheet result such as a reference error, divide-by-zero error, or name error.
Nested formulaA formula structure that contains other functions or expressions inside it to complete more complex logic.