Undekhis01ep0220201080psonylivwebdlaac Better File

Then "80psonylivwebdl" – maybe the resolution is 800p (80p?), "sonyliv" sounds like a streaming service or production company, like SonyLIV. "webdl" usually refers to a web download, so a version obtained from the web. "aac" is the audio codec commonly used for streaming. The user added "better" at the end, maybe indicating they want a better version or a review of this file.