yEnc TZ is a simple, freeware, program that decodes yEnc encoded files. I wrote it because I couldn't find an existing standalone yEnc decoder for Macintosh, and I wasn't about to pay $15 for a piece of shareware just so I could look at yEnc encoded binary files. MT-Newswatcher 3.2 for Mac OS X advertises that it can handle yEnc encoded binary files, but it wants to hand them off to another program to do the decoding. You can tell Newswatcher to use "yEnc TZ" instead. If you are running OS 7 or 8, use yEnc TZ Classic. If you are running 9 or X, use yEnc TZ, because it has better long file name support. The source code for both versions of yEnc TZ is on my web site.yEnc TZ also decodes UUEncoded, Base64, and Palm Doc files.
Mac OS Classic
||System 7.0 - Mac OS 8.6.1