Google-sheets – Highlight cells whose content cannot be parsed as number

conditional formattinggoogle sheets

How can I highlight cells whose content is not parsable as number?

Best Answer

Use conditional formatting with a custom formula. For example, select cell A1, go to Format/Conditional formatting, select "custom formula" and enter

=ISERROR(VALUE(A1))

In the same dialog you can choose the range to which this formatting should be applied.