Stuffit Expander 3.5.1 unstuffs .sit archives made in the 80's and early 90's.  Note that it does *NOT* work on 4.x or newer .sit formats, but it's still useful for very old Macintosh models, since it's the last version to work...

Stuffit Expander 4 was the most popular archives decompression utility for Mac back in the early 90's.  It supports many compression formats such as .sit, .bin, .hqx and .zip.  Stuffit Expander 4 was superseded by Stuffit Expander 5 in...

VirtualDiskª will allow you to find and access ANY file you own, whether it is currently on your hard disk, on any of your floppy disks, cartridges, CDs, or remote on a networked volume for which you have access.  VirtualDiskª does...

StuffIt Deluxe 10.0 with serial number, runs on Mac OS X 10.3 and higher on PowerPC processors (i.e. G3, G4, G5).  

StuffIt Expander 5.5 was the most commonly used archive extractor in the later 90's on Mac OS 8 until the standard edition 7.0 came bundled with Mac OS 9.  Until version 7, StuffIt Expander 5.5 was a must have tool especially for people...

StuffIt was the most versatile and used compression suite on the Mac since 1987.  It began as shareware and then it went commercial but StuffIt Expander (the decompression tool) always remained free and was even bundled by Apple on Mac OS...

The Unarchiver is one, if not THE, most versatile archive extractor application for Mac OS X. Unlike Stuffit Expander, which is also quite popular, The Unarchiver lets you extract files without regards to file permissions, whereas Stuffit Expander...

Includes the Expansion Enhancer (Stuffit Engine)

Unix Tar archive utility for 68K Macs.  

MacBinary II+ is a System 7 drag & drop converter for MacBinary files. Simply drop a MacBinary file on it and it will be decoded, drop any other file or folder on it and it will be encoded.