Files with vvn file extension can be found as CAD drawings or projects from program called Vivien by Cast Group of Companies. Probably no longer used.
VVN file extension - Vivien drawing
What is vvn file? How to open vvn files?
File type specification:
The vvn file extension is related to drawings or projects created in Vivien program from Cast Group of Companies Inc.
Probably old CAD program. Seems like the developer is no longer in business and as such this file type is most likely obsolete.
This vvn file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
