The file name you mentioned follows a standard naming convention used in online file sharing:
The Matroska Multimedia Container format, which can hold multiple video, audio, and subtitle tracks in a single file. How to Watch or Download Safely The file name you mentioned follows a standard
Refers to the High Efficiency Video Coding codec, which provides high quality at significantly smaller file sizes compared to older formats. which can hold multiple video
Identifies the release group known for high-quality, efficient encodes using advanced settings. efficient encodes using advanced settings.