GDX

One may also pass information via GDX files as discussed in the Using GAMS Data Exchange or GDX Files chapter.  However, GAMS has not yet released general interface routines rateher having particular ones to MATLAB, ACCESS and Excel  so what one needs to do is write a file for GAMS inclusion then include that file in another GAMS program and create a GDX file for use in the current file as discussed below.