You will need a utility like WinRAR or 7-Zip to extract the contents of the .rar file.
The file typically refers to archived installation data for Counter-Strike Online 2 (CSO2) , a sequel to the original Counter-Strike Online developed by Nexon and Valve. Counter-Strike online v2.rar
Recent uploads on sites like ModDB indicate that these files are often archived by users for preservation or for use with custom launchers. You will need a utility like WinRAR or
Because these archives often include custom launchers ( .exe files), some antivirus programs may flag them as "false positives." It is common practice in the community to whitelist the game folder to ensure it runs correctly. Counter-Strike online v2.rar