public static function _unwrapResult($value) {
		if (is_string($value)) {
			if ((isset($value{0})) && ($value{0} == '"') && (substr($value,-1) == '"')) {
				return substr($value,1,-1);
			}
		//	Convert numeric errors to NaN error
		} else if((is_float($value)) && ((is_nan($value)) || (is_infinite($value)))) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		return $value;
	}
public static function _unwrapResult($value) {
		if (is_string($value)) {
			if ((isset($value{0})) && ($value{0} == '"') && (substr($value,-1) == '"')) {
				return substr($value,1,-1);
			}
		//	Convert numeric errors to NaN error
		} else if((is_float($value)) && ((is_nan($value)) || (is_infinite($value)))) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		return $value;
	}
public static function _unwrapResult ( $ value ) { if ( is_string ( $ value ) ) { if ( ( isset ( $ value { 0 } ) ) && ( $ value { 0 } == '"' ) && ( substr ( $ value , - 1 ) == '"' ) ) { return substr ( $ value , 1 , - 1 ) ; } //	Convert numeric errors to NaN error } else if ( ( is_float ( $ value ) ) && ( ( is_nan ( $ value ) ) || ( is_infinite ( $ value ) ) ) ) { return PHPExcel_Calculation_Functions :: NaN ( ) ; } return $ value ; }
Remove quotes used as a wrapper to identify string values

@param mixed $value
@return mixed
Remove quotes used as a wrapper to identify string values