You can view these text files using standard editors like Notepad or specialized readers like NFOPad .

Releases like this often include an NFO file, which is a plain text file containing technical metadata (bitrate, audio codecs, subtitles) and release notes.

Bonn - Alte Freunde, neue Feinde (TV Mini Series 2022) - IMDb

The naming convention follows standard file-sharing patterns typically found on Usenet or torrent trackers: The title of the series. S01: Indicates Season 1.