I received narrated lectures from a colleague in a .jar format. These files were downloaded from Blackboard, but we have recently moved our entire system to Canvas. I am unfamiliar with this file type, but was able to download this player from Google, which allows me to play the files. I would prefer to either embed these videos into Canvas or convert them into a more common file type (e.g. ".mov", ".mp4" or something like that) so that my students have an easier time opening the files.
Any advice is greatly appreciated! I've attached a copy of one of the lecture files if it helps.