The format was designed by Phil Katz for PKZIP, and in the form now used (PKZIP 2 format) it uses his DEFLATE algorithm for compression.
Zip files use the file extension ".zip" and have the MIME media type application/zip.
Many software utilities other than PKZIP itself are now available to create, modify or open zip files, notably WinZip and Info-ZIP[?].
wikipedia.org dumped 2003-03-17 with terodump