V_2016-01-02-03r.7z -

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.

: This could represent an hour (3 AM) or a version index. r : Commonly indicates a revision or a release version. v_2016-01-02-03r.7z

To give you a better description, could you tell me where you found this file or what kind of project it relates to? To access the contents, you will need a

A snapshot of a database from that specific date. To access the contents

Note: As this is a generic file name, it is likely specific to a custom application, proprietary software, or a local backup system, rather than a standard public file.