Drupal Commerce is revolutionary software integrating commerce, content and community to create engaging Web experiences that bring e-retailers more traffic to drive more results.
It empowers you to build any type of eCommerce website, making as few hard-coded assumptions as possible about your business needs.
The design of Drupal Commerce frees merchants to focus on innovating and growing their businesses rather than on reinventing the wheel. Developers can use Drupal Commerce to implement highly tailored eCommerce systems without having to work around limitations in their core framework.
Instructions and prerequisites are listed in the "Readme.txt" within the zip file