CMZ (archive format)

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 "".

Software

 * uncmz A command line extractor with source in Golang.

Sample files

 * Lotus Ami Pro Collection (from archive.org) → "Lotus AmiPro 3.0 - German - Windows.zip" ...
 * https://telparia.com/fileFormatSamples/archive/cmz/
 * Lotus Ami Pro Collection (from archive.org) → "Lotus AmiPro 3.0 - German - Windows.zip" ...
 * https://telparia.com/fileFormatSamples/archive/cmz/