.7z onto a ds?

there's this gameboy colour game i want to play on my ds and i was just wanting to know if there was a way to convert a .7z file to a format that the ds will play?
thanks, ben

hmmm, do you have Lame Boy?
Open up the 7z file, and extract it to your micro SD card.Hope i helped.

what file format does that change it to?

Download 7 Zip and use this to extract the files from the .7z file. Then download Lame Boy and follow the instructions that come with the download. Best of luck and enjoy,
miros

so would this allow me to play the game on my ds?

Yes, this will allow you to play your GB rom on your NDS, of course you will need a flash cart and a microSD card to put the files on to.
miros

yeh iv already got those and loads of ds games working i just wanted to know if a could gbc games to work on it.
you've been a great help thanks ;D

You need to use an emulator. https://www.romulation.org/forum/index.php?topic=5002.0