Hello! The following should be helpful to you with regarding to uploading a video in a Canvas course. Please let us know if you have any further questions. All the best!
Howdy @lseals10 ,
Thanks for sharing your question with us. From your question, not sure where you want to upload the file (ie a resource versus an assignment submission) so tried to cover all bases below These articles should be helpful:
Good luck! Keep learning,
Sky V. King