: This is a high-quality video container that can hold multiple video, audio, and subtitle tracks. Common Sources for This File Type
Because these names are randomly generated IDs assigned by Telegram's servers, it is impossible to know the specific content of the video without more context. However, here is what the filename tells us: AgADygADo-p4Rw.mkv
: If you were viewing videos on Telegram recently, the app may have cached it with this encrypted name. : This is a high-quality video container that
: Check your Telegram -> Telegram Video folder. The file was likely sent in a chat or channel you follow. AgADygADo-p4Rw.mkv