The Excel ISFORMULA function returns TRUE when a cell contains a formula, and FALSE if not. When a cell contains a formula ISFORMULA will return TRUE regardless of the formula's output or error conditions.
Test if cell contains a formula
TRUE or FALSE
reference - Reference to cell or cell range.
You can use the ISFORMULA function to test a cell to see if it contains a formula. ISFORMULA returns TRUE when a cell contains a formula and FALSE if not.
Remember that you can temporarily display all formulas in a worksheet with a keyboard shortcut.
To extract and display a formula, use the FORMULATEXT function.
The Excel FORMULATEXT function returns a formula as a text string from given reference. You can use FORMULATEXT to extract a formula as text from a cell. If you use FORMULATEXT on a cell that doesn't contain a formula, you'll get an #N/A error....
The Excel ISERR function returns TRUE for any error type except the #N/A error. You can use the ISERR function together with the IF function to test for an error and display a custom message, or perform a different calculation if found.
The Excel ISERROR function returns TRUE for any error type excel generates, including #N/A, #VALUE!, #REF!, #DIV/0!, #NUM!, #NAME?, or #NULL! You can use ISERROR together with the IF function to test for errors and display a custom message, or...
The Excel ISNA function returns TRUE when a cell contains the #N/A error and FALSE for any other value, or any other error type. You can use the ISNA function with the IF function test for an error and display a friendly message when it appears...
The Excel ISNONTEXT function returns TRUE for any non-text value, for example, a number, a date, a time, etc. The ISNONTEXT function also returns TRUE for blank cells, and for cells with formulas that return non-text results.
The Excel ISNUMBER function returns TRUE when a cell contains a number, and FALSE if not. You can use ISNUMBER to check that a cell contains a numeric value, or that the result of another function is a number.
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