Watch this video to learn how to convert your PowerPoint presentation into a video. When you make a recording of a presentation, all its elements (narration, animation, pointer movements, timings, and so on) are saved in the presentation itself. In essence, the presentation becomes a video that your audience can watch in PowerPoint.
So you have two options for turning your presentation into a video that's ready to view:
1. Save/export your presentation to a video file format (.mp4 or .wmv).
2. Save your presentation as a PowerPoint Show (.ppsx) file. (A PowerPoint Show appears full-screen in Slide Show, ready to view immediately.)
To learn more visit: https://support.microsoft.com/en-us/office/save-a-presentation-as-a-video%E2%80%8B-in-powerpoint-ba919059-523d-40a8-b99c-08d18996c09d