To open a .torrent file, you need a client. Popular options include:
Ensure the file ends in .torrent . If it is an .exe , .bat , or .msi file disguised as a torrent, it is likely malware. Download File DDDDDAAAAA.torrent
A lightweight, simple client popular on macOS and Linux. To open a
Common but often criticized for including adware and bloatware. picoCTF 2022 Write-up: TorrentAnalyze | by Nisarg Suthar A lightweight, simple client popular on macOS and Linux
Downloading copyrighted material can lead to "cease and desist" letters from your Internet Service Provider (ISP) or legal action.
Verify that the reported file size matches what you expect. For example, if a 4K movie torrent is only 300MB, it is almost certainly a fake or a virus.
A healthy torrent has a high number of seeders (people who have the full file) compared to leechers (people still downloading). If a torrent has many leechers but zero seeders, it will never complete.