CMZ (archive format)

File Format
Name	CMZ (archive format)
Ontology	Electronic File Formats Archiving CMZ (archive format)
Extension(s)	.cmz

CMZ (official name unknown) is a compressed archive format. Its only known use is for distribution of some versions of Ami Pro. It may be a proprietary Lotus format.

It uses PKWARE DCL Implode compression.

Format details

A CMZ file is a sequence of one or more member file segments, each of which consists of a signature, then a header, then the compressed data.

Identification

Files begin with ASCII "Clay".

Software

• uncmz A command line extractor with source in Golang.
• Deark

Sample files

• http://cd.textfiles.com/cdaction/cdaction35/PROG/AMIPRO/
• http://cd.textfiles.com/microforumw/wsdisk2/TEXTPROC/_B4/AMIPRO31/
• Lotus Ami Pro Collection (from archive.org) → "Lotus AmiPro 3.0 - German - Windows.zip" ...
• dexvert samples — archive/cmz