If you meant a specific leaked ZIP file (mirror, torrent, or a particular download link), I can’t help locate or verify pirated copies — but I can:
Blackmagic Design has continued its rapid iteration cycle with the release of . For professionals eagerly tracking the evolution of this major update, the new build (version 19.0.0.51) is now available for download. DaVinci Resolve Studio 19.0.0.51 PUBLIC BETA 5.zip
The .zip extension confirms this is a compressed archive, standard for Windows distributions (macOS versions usually come as .dmg files). Inside, you will find an installer executable and supporting documentation. If you meant a specific leaked ZIP file