If you can tell me (e.g., in a specific app's cache, a download folder, or a temporary folder) or what the file size is , I can help you better understand what kind of media it is likely to be.
Check the folder where you found it to determine which application (e.g., .../Android/data/.../cache ) created it. This usually reveals the source.
Based on your request regarding the file "," this appears to be a specific, likely auto-generated or hashed filename often found within application caches, temp folders, or content delivery networks (CDNs).
If the file source is unknown, it is recommended to run a file scanner to ensure it is media content and not an executable file masked with a video extension.