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ISFORMULA function: Description, Usage, Syntax, Examples and Explanation

What is ISFORMULA function in Excel?

ISFORMULA function is one of the Information functions in Microsoft Excel that checks whether there is a reference to a cell that contains a formula, and returns TRUE or FALSE.

Syntax of ISFORMULA function

ISFORMULA(reference)

The ISFORMULA function syntax has the following arguments.

  • Reference: Reference is a reference to the cell you want to test. Reference can be a cell reference, a formula, or a name that refers to a cell.
Worked Example:   Sum formulas only in Excel

ISFORMULA formula explanation

  • If reference is not a valid data type, such as a defined name that is not a reference, ISFORMULA returns the #VALUE! error value.

Example of ISFORMULA function

Steps to follow:

Worked Example:   Sum formulas only in Excel

1. Open a new Excel worksheet.

2. Copy data in the following table below and paste it in cell A1

Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.

You can adjust the column widths to see all the data, if need be.

Worked Example:   Sum formulas only in Excel
Formula Description Result
=TODAY() Returns TRUE because =TODAY() is a formula. TRUE
7 Returns FALSE because 7 is a number, not a formula. FALSE
Hello, world! Returns FALSE because “Hello, world!” is text, not a formula. FALSE
=3/0 Returns TRUE because, although dividing by 0 results in an error, the cell does contain a formula. TRUE

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