The suffix indicates that the video file has been compressed or bundled using the RAR archive file format.
The video is encoded using the H.264 (AVC) codec in a Matroska (.mkv) container. The file is likely compressed in a WinRAR archive.
The keyword begins with "spielenwirliebemaladolescenza". This is a concatenation of the German and Italian titles for the same, highly controversial 1977 film.