ACB (compressed archive)

File Format
Name	ACB (compressed archive)
Ontology	Electronic File Formats Archiving ACB (compressed archive) ; ; ;
Extension(s)	.acb
Released	~1994

ACB is a compressed archive utility for DOS, and its associated file format. It was developed by George Buyanovsky, and released as shareware.

It appears to have a file patching feature, which it calls "trainable channel mode".

Identification

Based on IDArc and other evidence, the byte at offset 1 is between 0x80 and 0x84 inclusive, and the byte at offset 3 is 0x00.