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

Description: The function returns True if the value is a logical value in Excel.
Syntax: ISLOGICAL (value)
Inside:
- value: The value you want to test is a logical value or not, is a required parameter.
Attention:
- The function returns True if the value is logical and vice versa, the function returns False.
For example:
Is determining the value in value logical?

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

- Press Enter -> return value is:

- Because cell C6 is logical here, the function returns True.
- Similarly copying the formula for the remaining values results:

- Where the value is not a logical value -> the function returns a value of False

Above are instructions and some specific examples when using ISLOGICAL function in Excel.
Good luck!
FAQ
What does the ISLOGICAL function do in Excel?
The ISLOGICAL function performs the calculation described in this guide. Use the correct arguments and compatible data types for reliable results.
How do I enter the ISLOGICAL function correctly?
Start with an equals sign, enter ISLOGICAL, add the required arguments inside parentheses, and confirm that cell references and separators are correct.
Why does the ISLOGICAL function return an error?
Common causes include missing arguments, invalid data types, incorrect cell references, unsupported values, or regional separator settings.
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