Most .rar archives of this nature include a README.txt or INSTALL.md which defines the versioning (V2) and the creator.
Could you provide on where you found this file or what the surrounding folder/website was about so I can give you a more detailed analysis? sc23864-NGPCSV2.rar
If you have encountered this file on the web or via email, follow these security protocols before opening it: sc23864-NGPCSV2.rar