7-Zip is a free utility for extracting files from a compressed archive. Mac users should use StuffitExpander instead.

• Where Available: Mod Lab, PhD Lab, PhD Server, Student Computers, NRG
• Source: http://www.7-zip.org
• Cost: Free
• Platform: This specific utility runs on Windows only
• Mac Equivalent: Stuffit Expander is available on AppStore (https://itunes.apple.com/us/app/stuffit-expander/id405580712?mt=12)