ifna excel
The Excel IFNA Function. Basic Description. The Excel IFNA function tests if an initial supplied value (or expression) evaluates to the Excel #N/A error. If so, the function returns a second supplied value; Otherwise the function returns the first supplied value. Note: the IFNA function is new to Excel 2013, so is not available in earlier versions of Excel. value. The value or expression to be tested. value_if_na. The alternative value or expression, that is to be returned if the first supplied value evaluates to the #N/A error.