libtorrent is the industry standard for high-performance downloading. Go: anacrolix/torrent is a great full-featured engine. Could you clarify: Are you trying to host this file for others to download?
If you just want to provide a button on a website that allows users to download the .torrent file to their computer, use the HTML download attribute: Download File FFFFFFFDDD.torrent
WebTorrent is the most popular for streaming or downloading torrents in the browser or Node. Download File FFFFFFFDDD.torrent