Help RAR file

whenever i download a rom game from this site it goes on my sd card as an RAR. file how do i make it a NDS. file?

You have to extract the RAR file, then put the .nds file on your tutorial. It's quite simple.

And how do i do that?

Huh, click it the RAR file... then there's an option at the top- extract, select all and then click extract to your destination.

i got no option...... only open and the other stuff

Firstly, do you have RAR program downloaded.

dont think so

Thats what the problem is - check out the tutorial section for RAR tutorial.