NDS M3 DS Real Set Up & Download Problem

Hi, have bought the M3 DS Real & Rumble RAM Pack and downloaded the system file, created an NDS file to download games, but even though they are in the directory they do not show up or play from the games icon. Nothing runs, can anybody help or have advice on the set up.Thanks

You created a .nds file? How's that?

Folder not file.

EDIT: Holy shit, I didn't read it all. Sorry.The files in the Roms folder are .nds files?

It's easy to create a working .nds file, just gotta compile some code with the right environments. You'll need to make sure you extract the NDS roms from their archives, so that they have the .nds extension.