I need help with transfering tomodachi life save to a real 3ds

so i played alot of tomodachi life before getting a 2ds(old model) and i homebrewed it.
but now i want to carry all the progress on my actual hardware with checkpoint but the save file is in txt format (saveDataArc.txt) i didnt think of it that much so i put the file in the saves directory in checkpoint.but the (saveDataArc.txt) file didnt show up. and yes i did try to press restore on the tomo save file but the file didnt show up
sorry for the grammar :(.