How to Use the ISNA Function in Excel

This guide explains how to use ISNA Function in Excel, including its syntax, required arguments, practical examples, and common errors.

Description: The function returns True if the value is an # N / A error value in Excel.

Syntax: ISNA (value)

Inside:

- value: The value you want to test is a # N / A error value, is a required parameter.

Attention:

- The function returns True if the value is an # N / A error value and vice versa returns a False value .

For example:

Determine where the values in the value are # N / A error values .

- In the cell to calculate enter the formula : = ISNA (C6)

- Press Enter -> return value is:

- Here, cell value C6 is not an # N / A error value, so the function returns False.

- Similarly copying the formula for the remaining values results:

- There is only error # N / A, the function returns True value , the rest of other error values return false.

Above are instructions and some specific examples when using the ISNA function in Excel.

Good luck!