Telegram renames media files using unique internal hashes.
Media servers sometimes use these IDs to keep files organized in the backend.
To find the real title, right-click the file and check Properties > Details (Windows) or use a tool like MediaInfo to see the internal "Title" tag.
Many professional editors don't support MKV natively. You may need to "remux" (change the container without re-encoding) the file to MOV or MP4 before importing it into your video project.