Transfer game data from nightly to canary

Hi! i’ve been trying to use multiplayer on animal crossing new leaf with a friend but it doesnt work and watching a few videos trying to solve this problem i discovered that apparently the multiplayer thing isnt supported on citra nightly.
so i wanted to ask, how can i transfer my game data from citra nightly 1442 to canary? i dont wanna loose them and start the game again.
thank you!