ZIP files are used to contain compressed copies of one or more files in a single archive. By reducing the size of the files they contain, ZIP files can be transferred across network connections (such as the internet) much faster than the original, uncompressed files. The ZIP format has been released to the public domain, meaning it can be freely implemented by anyone. Many programs, like WinZip, PowerArchiver and 7-zip, support the ZIP format, and operating systems like Windows and MacOS have built in support for creating and extracting ZIP files.
This guide shows you how to create ZIP files and how to extract files contained in a ZIP file.