how to set the two dimensional data to the gdx object

[dheer]

Hi,

Can anyone help in the following..

i have a two dimensional parameter like

SETS i plants /plant1*plant3/;
j markets /marke1*market5/;

PARAMETER cost(i,j) transportation cost from plant i to market j;

$GDXIN transportationcost.gdx
$LOAD cost = transportationcost
$GDXIN

display cost;

Question :

Now i want send the cost data(transportationcost.gdx) from any
language(c,c++..etc)... can any body help me on this...

Thnx in advance,
dheer.