ISNA Function Explained

The ISNA() function in Microsoft Excel is used to check for the #N/A error value. It returns TRUE if the value is the #N/A error, and FALSE if it is not. It takes a single argument, which is the value to be tested.

ISNA Function Syntax

ISNA(value)

  • value: The value you want to test. It can be a number, text, or logical value.