This specific naming convention—starting with double underscores followed by a mix of letters and numbers—is typical of:
, and are there any other files in the same folder with similar names?
Without more context or the ability to view the file, it is impossible to determine the visual content. If you found this file on a device or received it via message, it is likely a personal or automatically generated recording.
: Many security cameras (CCTV), dashcams, and bodycams use alphanumeric strings to catalog clips by date or device ID.
: It may be a unique identifier from a personal cloud storage backup (like Google Photos or iCloud) or a private server.