An early compressed file format
Zoo files can contain an compressed archive of files and folders, as well as previous versions of identical files. Zoo compression is no longer common. In the past, it was commonly used on Unix and OpenVMS computers. ZOO files can be opened by Booz, which has been ported to DOS, Windows, and Mac OS X.
MIME type: application/zoo, application/x-zoo, application/macbooz
Learn more about .ZOO files:
Visit Zoo on Wikipedia.
Read about Compression at ITKnowledgeExchange.com.