If you need an archive by that name for a specific project, contact the original provider for a verified, complete distribution method (e.g., direct download, torrent with hash checks, or cloud storage with published checksums).
:
Open venx267upart01.rar (the first part) with WinRAR. Never open part 04 directly. WinRAR automatically finds the rest of the pieces if they are in the same folder.
Get-FileHash .\venx267.part04.rar -Algorithm SHA256 macOS/Linux (Terminal): shasum -a 256 venx267.part04.rar