A TORRENT file is a file used by BitTorrent, a peer-to-peer (P2P) file sharing program, for downloading a file (often from multiple locations at one time). It does not contain the content being distributed, only the metadata, which includes information about the file or group of files to be downloaded, such as their names, sizes, and folder structure.
BitTorrent downloads are split among multiple nodes, which reduces the bandwidth used by the primary server and speeds up download times. Popular file types that can be downloaded using BitTorrent include digital movies and TV shows, music, and video games. Some are offered as free downloads, while others can be downloaded for a fee.