SMM 2 > Save Data
This page is based on Super Mario Maker 2 version 3.0.3.
For every saved course, the following files can be found in the save data archive:
course_data_<id>.bcdcourse_replay_<id>.datcourse_thumb_<id>.btl
The id consists of three decimal digits from 000 to 999.
In addition, the following files are always present: