How to Use the NOT Function in Excel (Reverse Logical Values)

How to Use the NOT Function in Excel (Reverse Logical Values)

The NOT() function is a simple yet powerful Excel tool that reverses a logical value — turning TRUE into FALSE and vice versa.

📘 Syntax:

=NOT(logical)

✅ Example:

=NOT(A2="Pass")

This returns TRUE if A2 is not equal to "Pass", and FALSE if it is.

🎯 Use Cases:

• Validating opposite conditions
• Reversing IF logic
• Creating custom warnings or alerts

🔁 Combine with Other Functions:

=IF(NOT(B2>50), "Fail", "Pass") will return "Fail" if the score is NOT greater than 50.

🧠 Why It Matters:

Using NOT allows you to flip any condition, which gives more flexibility to logical tests in Excel.

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