ISERR in WPS on Windows FAQ

When you use ISERR in WPS Office on Windows, the most common questions are about result meaning, formula entry, and error type differences; this FAQ covers 3 common questions.

FAQ

What does it mean when the ISERR function returns TRUE?

1. Check whether ISERR is testing a cell, a formula result, or a referenced result.
2. If it returns TRUE, the target is an error value other than #N/A.
3. You can then check whether it is #DIV/0!, #REF!, #VALUE!, or another common spreadsheet error.
4. If needed, combine ISERR with IF to show a more readable message.

Why does ISERR return FALSE when the cell shows #N/A?

1. Confirm that the current error type is #N/A.
2. ISERR checks for errors except #N/A, so it returns FALSE for #N/A.
3. If you want to identify all error values, use a formula approach that checks every error type.
4. In lookup-related formulas, separating “not found” from other formula issues can make later handling easier.

How to use the ISERR function in WPS on Windows when the formula shows an error?

1. Check whether the formula starts with =.
2. Check the function name, parentheses, and reference expression for completeness.
3. Confirm that the content inside the parentheses is a valid value, cell reference, or formula.
4. Press Enter again and use the syntax prompt in the formula bar to correct the entry.

Glossary