Use a tool like MediaInfo or the "Properties" tab on your PC to see the video's resolution, duration, and metadata. This can help you categorize it (e.g., a 2-hour 1080p file is likely a movie).
Use VLC Media Player or MPC-HC . These play almost any MKV file regardless of the internal encoding.
Go back to the Telegram chat or channel where you downloaded the file. The caption or the context of the conversation is the most reliable way to identify it.
Ensure the file ends in .mkv and not something like .mkv.exe .
If you found this file in a random folder or received it from an unknown source:
To prevent your library from becoming a mess of random strings, follow a standard naming convention once you've identified the video: Movie Name (Year) [Resolution].mkv Example: Interstellar (2014) [1080p].mkv TV Shows: Show Name - S01E01 - Episode Title.mkv Personal/Clips: YYYY-MM-DD - Description.mkv 4. Why filenames look like this
Since the filename is an encoded string, you can use these methods to figure out what the video actually is without a full manual review:
The filename appears to be a system-generated name typically used by Telegram for files uploaded to its servers. Because these names are randomized, they don't describe the video's content, making them difficult to organize or identify later. 1. Identifying the Content