So I edited the PSG sound by extracting it through GMAD I then edited the sound but I now need to convert it back to a .gma file to put back into the addons folder. I've tried loads of guides but none of them actually help, does anyone have any idea how to convert the folder back into a .gma for the addons

So I edited the PSG sound by extracting it through GMAD I then edited the sound but I now need to convert it back to a .gma file to put back into the addons folder. I've tried loads of guides but none of them actually help, does anyone have any idea how to convert the folder back into a .gma for the addons