Return the value of the NumericToStringConversionMethod flag.
static int GetNumericToStringConversionMethod( );
An integer value indicating the method used for Numeric to String conversion. If the value is 1, then the XLL+ framework is set to use the method of XLL+ 5 (and earlier versions), offering increased accuracy (because Excel handles the conversion). If the value is 0, then the framework is using the method of XLL+ 6 and above, which is faster but less accurate.