To access the contents, you will need a file archiver tool that supports .7z files, such as 7-Zip on Windows or The Unarchiver on macOS.
To give you a better description, could you tell me where you found this file or what kind of project it relates to? v_2016-01-02-03r.7z
: This could represent an hour (3 AM) or a version index. r : Commonly indicates a revision or a release version. To access the contents, you will need a
Without opening the file, it is impossible to know for sure, but files with this naming convention typically include: To access the contents