HI @KarlijnvanA lots of useful suggestions above.
I would recommend using the New Analytics function to see what students are accessing (ie is published, available, and getting noticed).
There are two ways to get a list of files from a specific course
1) if you have the Ally accessibility tool linked, the sub account level function allows all assets to be listed (with their accessibility scores.
2) as an alternative there is an api call that you can run from the browser
https://canvas.instructure.com/doc/api/files.html#method.files.api_index
This offers this api call which you can make from the browser
https://YOURCANVASADDRESS/api/v1/courses/YOUR COURSEID/files
When you run this it will look like a foreign language, so you would then need to find an online JSON converter to drop it into Excel
Hopefully someone else may have a simpler solution for you š