JAR (ARJ Software)
From Just Solve the File Format Problem
JAR is a file archiving and compression utility, and associated file format. It was developed by ARJ Software, as the successor to ARJ. It is not related to the Java archive JAR format.
Identification
Based on the file command's database, JAR files either begin with the ASCII string JARCS, or have bytes 1A 4A 61 72 1B at file offset 14.
