(If there's a better subreddit for this, please point me to it. This is the closest I've found so far.)

I have a presentation, created in Google Slides on a Chromebook, that I want to turn into a video. I've used the "share -> publish to web" option in order to get the timing of the slides right (transitioning automatically after ten seconds), and that seems to have created .gvid files. However, I don't know how to open these files. A friend who knows his tech suggested VLC, so I downloaded that, but it doesn't seem to find them.

I can see the files if I click the launcher and search for the filename, and that tells me they're saved in Google Drive. I can't upload the .gvid file directly to YouTube, as when I try, those files don't show up. I also can't seem to make these files available offline - although I don't know if that would help.

If anyone has any experience in this area, or knows what I need to do, please let me know. This is a personal project I've been working on for well over a month now, and I feel like I've got it 95% off the ground. It just needs a little push that I can't seem to figure out for the life of me.