: Indicates the vertical resolution (640 x 360 pixels), which is a low-definition format suitable for small screens or slow internet connections.

: Likely identifiers for the content creator, series name, or distributor.

: You may need specific codecs to play HEVC files on Windows. You can download the HEVC Video Extensions from the Microsoft Store or use a universal player like VLC Media Player which supports it natively.

The text "AZWOliviaSS27 Hevc 360p mp4" appears to be a specific used for compressed video content. File Name Breakdown

: The container format used to hold the video and audio data. How to Use This File