If you must open it, use VLC Media Player as it is more resilient to various codecs and potential playback errors than standard system players.
The name format resembles automated file naming used by specific surveillance systems, body cameras, or media transcoding tools. g60589.mp4
Use tools like ExifTool to see when the file was created and what device filmed it. If you must open it, use VLC Media
Knowing the source (e.g., a specific social media post, a website, or a physical location) would help in identifying its true nature. If you must open it
If you have the file and want to examine it without opening it directly, you can use these methods: