What is an Unpacker and How Does It Work?

An unpacker is a tool or software that is used to extract or unpack compressed or archived files. It is the opposite of a packer, which is a tool used to compress or package files into a smaller size for storage or transfer.

Unpackers are commonly used to extract files from compressed archives such as ZIP, RAR, and 7Z files. They work by reversing the compression process, decompressing the files and restoring them to their original size and format.

Some common unpackers include:

* WinRAR: A popular unpacker for Windows that can extract a wide range of compressed file formats.
* 7-Zip: A free and open-source unpacker for Windows that supports many file formats, including 7Z, ZIP, and RAR.
* The Unarchiver: A free and open-source unpacker for macOS that supports many file formats, including ZIP, RAR, and Tar.

Overall, unpackers are useful tools for anyone who needs to extract compressed files on a regular basis, whether it's for work or personal use.