CAZIP

CAZIP, or CA-ZIP, is a compressed file format by Computer Associates. It evidently uses PKWARE DCL Implode compression.

It is distinct from the CAZIPXP compressed archive format.

Identifiers
The naming convention for the compressed files is to replace the last character of the original extension with "_", like MS-DOS installation compression.

Identification
Files begin with.

Software

 * cazip.exe (for Windows console)

Sample files

 * https://telparia.com/fileFormatSamples/archive/cazip/