7-Zip is a file archiver with a high compression ratio.

• High compression ratio in new 7z format with LZMA compression
• Supported formats:
• Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
  Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
• For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
• Strong AES-256 encryption in 7z and ZIP formats
• Self-extracting capability for 7z format
• Integration with Windows Shell
• Powerful File Manager
• Powerful command line version
• Plugin for FAR Manager
• Localizations for 69 languages

A small, easy to use, fast-installing program that is completely free. You can create archived files in a variety of formats and unpack even more formats. Great for opening those driver packs.

Useful for:

• Unzipping archived files
• Zipping up files using .zip and .7z and many other common archiving formats
• Unzipping .tar.gz
• Encrypting a file
• Creating a self-extracting executable