used a trick I posted here to access card1 game's save under gateway.
can export files from Monster Hunter tri G to sdcard's sde folder.
mh3g's savedata is not encrypted in game so name/money/point is all plain data.
the MH3G one working for AMHJ code, JPN region, and the 3U is for AMHE, 3P is for AMHP.

How to use:
if your save is for mh3g.3ds format, just rename SaveDataExporter.3DZ to 3ds, if you using 3dz you need patch SaveDataExporter.3DZ with the same card id to your Game.
in 3dshelper, select your 3dz rom, export a bin file, and select savedataexporter, import the bin file just like treat a game.
in demo version (a1), when this exporter launched, all files will be export to sde folder.
new version (L/R): press L to import, R to export. files will place under mh3g folder in sd card
TODO:
1. 6.x MH4G support with additional decrypt.
2. Import
3. titleID batch changer to match other games.
can export files from Monster Hunter tri G to sdcard's sde folder.
mh3g's savedata is not encrypted in game so name/money/point is all plain data.
the MH3G one working for AMHJ code, JPN region, and the 3U is for AMHE, 3P is for AMHP.

How to use:
if your save is for mh3g.3ds format, just rename SaveDataExporter.3DZ to 3ds, if you using 3dz you need patch SaveDataExporter.3DZ with the same card id to your Game.
in 3dshelper, select your 3dz rom, export a bin file, and select savedataexporter, import the bin file just like treat a game.
in demo version (a1), when this exporter launched, all files will be export to sde folder.
new version (L/R): press L to import, R to export. files will place under mh3g folder in sd card
TODO:
1. 6.x MH4G support with additional decrypt.
2. Import
3. titleID batch changer to match other games.