I had quick look. It appears to hold cheatsheets.

Possibly among other things.

The teacher says that a student came and demo him that it’s possible to retrieve custom programs even in exam mode. Then there is a demo of it.

Not GP or French-speaking but what I got through auto-translate of the autosubs was tl;dw: When in exam mode one can access notes that it isn't supposed to allow (seemingly by performing the actions to create a new TI-BASIC “program” with the name of one that existed before entering exam mode, containing the notes).