You need an extraction tool. WinRAR is the most common choice for .rar files.

How to Download and Install GTA [Game Title] (Apun Ka Games Version)

After installation, check the "Redist" or "_CommonRedist" folder inside the game directory. Install any included DirectX or VCRedist files to ensure the game launches without "DLL missing" errors. Troubleshooting Common Errors

Ensure you have enough free space. While the download is compressed, the game will expand significantly once installed.