You cannot "convert" an .mpl file into a video format like MP4 because the .mpl file contains no video data—it’s just a list. How to Open, Play, and Convert an MPL File - Lifewire
One evening, as Emma was about to leave her office, she received an anonymous email with a single attachment: another video file, also labeled ".mpl". With trembling hands, Emma opened the file, and a new video began to play. .mpl video file
Instead of storing actual video frames, the .mpl file acts as a navigation guide. It contains: A list of recordings in their chronological order. You cannot "convert" an