Import -- export files

in RT 2 I could export my roasts as json and also import.
In RT 3 I can only download csv but I can’t find any way to import json or csv.
Can someone help me?

On the top right you can import your RT2 roast profiles.

There is no json export feature at this time.
What do you want to achieve?

I would like to back up my data.
Import roasts or even share or test on another PC, which is not online.