A torrent file stores metadata used for BitTorrent. It is defined in the BitTorrent specification[1]. Download anything.
A torrent file contains the URLs of multiple trackers and integrity metadata about all the pieces. It can also contain additional metadata defined in extensions to the BitTorrent specification[2]. These are known as "BitTorrent Enhancement Proposals". Examples of such proposals include metadata for stating who created the torrent, and when.
source: en.wikipedia.org/wiki/Torrent_file Edit