Windows 10 "arj format" downloads
PowerArchiver 2012
... features. It supports a wide range of file formats, including ZIP, 7-ZIP, CAB, LHA (LZH), TAR, TAR.GZ, TAR.BZ2, BH, RAR, ARJ, ARC, ACE, ZOO, GZ, BZIP2, XXE, MIME, UUE ...
Price: $22.95 / Trialware