ISNA

ISNA(value)

Returns the boolean True or False depending if the value is #N/A.

value

The value you want to test.

REMARKS

* The "value" can refer to a value, cell reference, formula or a named range.
* You can use the IFERROR function to to return the value or something else if it evaluates to an error.
* You can use the IFNA function to return the value or something else if it evaluates to #N/A.
* You can use the ISERROR function to return True or False depending if the value is an error.
* You can use the ISERR function to return the boolean True or False depending if the value is an error (excluding #N/A).
* You can use the ISREF function to return True or False depending if the value is a cell reference.
* You can use the ERROR.TYPE function to return the number corresponding to a particular error value in a cell.
* This function has been available since Excel 1997.
* For the Microsoft documentation refer to support.microsoft.com
* For the Google documentation refer to support.google.com

	A
1	=ISNA(#N/A) = True
2	=ISNA(C-18) = False
3	=ISNA(INT("")) = False
4	=ISNA(100) = False
5	=ISNA("some text") = False
6	=ISNA(named_range) = True