Vxa.7z -

: The VM strictly limits what decoders can do (e.g., they cannot access your network or open arbitrary files), protecting your system from potentially malicious or buggy code inside an archive.

While VXA itself uses a modified ZIP format, a file named VXA.7z is likely a distribution of the VXA source code or research materials: VXA.7z

: The embedded decoders run in a specialized, OS-independent virtual machine (VM) based on the 32-bit x86 architecture. This ensures the decoder can run on future operating systems as long as the simple VM can be ported. : The VM strictly limits what decoders can do (e