Videos on flashcards

Hello everyone! Me (and a lot of others) want to study DGS (german sign language) and I’m wondering how I can implement videos into my flashcards?

The thing is I want to create ~5509 flashcards all at once. How do I implement videos into the excel sheet? Is it done by specifying the directory of each video?

Thank you very much for your help! I couldn’t find anything in the documentation, I’m sorry.