: Rather than just a video, an MP4 is a "container" that can hold video tracks, multiple audio tracks, subtitles, and even still images in a single file.
: Most systems use Windows Media Player or Apple's QuickTime . For a more versatile option that handles almost any codec, the VLC Media Player is widely recommended. VID_20221121_161003_223.mp4
: If you need to convert it to another format or reduce its size, tools like Adobe Premiere or Movavi Video Converter are professional-grade options. : Rather than just a video, an MP4