Adobe CS6 (Creative Suite 6), released in 2012, represents the last perpetual-license version of Adobe’s creative tools. Unlike the modern Creative Cloud (CC) subscription model, CS6 did not require monthly payments. For many illustrators, graphic designers, and prepress technicians, Illustrator CS6 remains a familiar, stable, and fully-featured vector editor.
The specific file name mentioned identifies as being in "PortableApps.com Format." However, there is a critical distinction between the format and the source: Unauthorized Distribution : PortableApps.com has explicitly stated that they do not create or distribute portable versions of Adobe products. Unofficial Repackaging