From WikiTemp, the GBAtemp wiki

This type of save file can be used without need for conversion on the following carts:

  • SuperCard
  • EZ-V
  • G6 (must rename from gamesave.0 to gamesave.sav and vice versa)

These carts require this type of save file to be converted for it to work:

  • M3
Instructions (not available currently)