To use a .rar file, you'll need extraction software such as WinRAR, 7-Zip, or a similar utility.

The filename you provided () suggests this is a third-party compressed file, likely downloaded from an unauthorized source.

This section addresses crucial legal considerations:

Released in April 2012, Adobe Illustrator CS6 was a landmark version. It introduced the Adobe Mercury Performance System, which brought native 64-bit support to both Windows and Mac OS, marking a significant leap forward in performance. This shift allowed the software to utilize more system RAM, making it possible to open, save, and export large, complex files much more quickly and reliably.

While Windows 10 and Windows 11 feature backward compatibility modes, older software often experiences display scaling issues on modern 4K monitors, random crashes, or conflicts with modern graphics card drivers.

Source: Adobe official CS6 system requirements.

The software is designed for both 32-bit and 64-bit Windows environments. System Requirements for Adobe Photoshop and illustrator CS6

CS6 works perfectly fine on Windows 11 so long as you install only the components that do not include the PxHIpa64. When did you end Support for Illustrator CS6?

Adobe Illustrator CS6 was designed to run on both 32-bit and 64-bit versions of Windows, though 64-bit is required for the Mercury Performance System's full benefits. Adobe Help Center