Working with archive files
Since the beginning of the PC era, users have employed a variety of file compression mechanisms. An early method used the ZIP file format, initially implemented by PKWare's PKZip program, which quickly became a near-standard for data transfer. Later, a Windows version, WinZip, became popular, and with Windows 98 Microsoft provided built-in support for .ZIP
archive files. Today, Windows supports ZIP files up to 2 GB in total size. You can file more information about the ZIP file format at https://en.wikipedia.org/wiki/Zip_(file_format).
Numerous developers have, over the years, provided alternative compression schemes and associated utilities, including WinRAR and 7-Zip. WinZip and WinRAR are both excellent programs, but are commercial. 7-Zip is a freeware tool that is also popular. All three offer their own compression mechanisms (with associated file extensions) and support the others as well.
For details on WinZip, see https://www.winzip.com...