# NA

Spread for WinForms provides advanced software components that support Excel import/export, full cell customization, an extensive calculation engine with over 450 functions and more, all with zero dependencies on Excel.

## Content



This function returns the error value #N/A that means "not available."

## Syntax

NA( )

## Arguments

This function does not require an argument.

## Remarks

It is necessary to include empty parentheses with this function.

## Data Types

Returns an error value.

## Examples

`NA()`
`NA(R12C7)`
`ISNA(NA())`gives the result TRUE

## Version Available

This function is available in product version 1.0 or later.

## See Also

[ISNA](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsFtoK/FunctionISNA) \| [ISNUMBER](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsFtoK/FunctionISNUMBER) \| [Information Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsinfo)