opening an encrypted recording

I'm trying to open a recorded video on a Mac. The host made me an admin, it was encrypted on my computer. When I try to open the file (which I have located) it says there is no application to open it. I use Chrome, which is listed as an option. I've opened these recordings previously--what can I do to open the file?

My Zoom and Chrome accounts are updated.

The error message:

There is no application set to open the document “video....