what does excel isna mean
The Excel ISNA Function The Excel ISNA function tests if an initial supplied expression (or value) returns the Excel #N/A Error, and if so, returns TRUE; Otherwise the function returns FALSE. The syntax of the function is: ISNA( value ) Where the value argument is the expression or value to be tested. The following spreadsheet shows the Excel Isna function, used to test different values and expressions. Formulas: Results: