: In Windows, right-click the file, go to Properties , and look under the Details tab for "Video" information.
: Right-click the file and select Open with > Windows Media Player or Movies & TV . macOS : Double-click to open with QuickTime Player .
: If you see a "codec not found" error, the video might be encoded in a newer format like HEVC (H.265) or AV1 , which older systems may not support without an update.
If you are referring to a file named , this is a standard MP4 video file. MP4 is a widely used digital multimedia container format primarily used to store video, audio, and subtitles. How to Open and Play 22584.mp4
: If the file is corrupted or unsupported, you can use Handbrake to convert it into a more compatible H.264 MP4 format. General Guide for MP4 Files File format not recognised. - Adobe Community
If the file won't open or only plays audio, it is likely due to a missing (the algorithm used to compress the video).