Excel ISTEXT Function is useful when you want to check if a value is a text string. It will return TRUE if a value is a text, else FALSE.
Even if a number is formatted as a text it will return TRUE. It’s useful to check outcomes for formulas or to check value type from a cell.
In the below example, I have used ISTEXT with IF function to create a nesting formula to deliver an alert message if a user enters an invalid name other than a text.
To learn more about Excel ISTEXT Function you can check Microsoft’s Help Section. And, if you have a unique idea to use it, I would love to hear from you.