zoo is a
data compression program and format developed by Rahul Dhesi in the mid-1980s. The format is based on the
LZW compression algorithm and compressed files are identified by the .zoo file extension. It is no longer widely used. Program source code was originally published on the comp.sources.misc
Usenet newsgroup, and was compatible with a variety of
Unix-like operating systems. Binaries were also published for the
MS-DOS and
AmigaOS user communities. A small companion program was also developed, entitled
booz, that provides only decompression functionality.