Zoo

File Format
Name	Zoo
Ontology	Electronic File Formats Archiving Zoo
Extension(s)	.zoo

ZOO was one of the many competing archive formats in the 1980s, and was based on the LZW compression system. It had some popularity with Open/VMS and Amiga systems, but didn't ultimately win out over ZIP.

References

• Zoo (file format) (Wikipedia)
• information at fileformat.info here