Given the timestamp and format, this is likely a screen recording , a gameplay capture , or a webcam stream saved locally to your computer. How to use this file
Use a modern media player like VLC Media Player or MPC-HC , as standard Windows/Mac players sometimes struggle with MKV files. 2023-02-05 17-45-58.mkv
This is the most common tool that uses this specific YYYY-MM-DD HH-MM-SS.mkv naming convention. Given the timestamp and format, this is likely
The filename is a standard timestamped file generated by recording software, most commonly OBS Studio (Open Broadcaster Software) . Given the timestamp and format
The format is a "container" that can hold multiple video, audio, and subtitle tracks in a single file.