This article is from the Introductory Macintosh FAQ, by Elliotte Rusty Harold firstname.lastname@example.org with numerous contributions by others.
Paul Thomson's shareware DOS utility Macette can transfer
MacBinary files like the ones stored at ftp.macfaq.com from a DOS
file system onto a Macintosh high density diskette, translating
from MacBinary into a standard two-fork executable Macintosh file
in the process. It can even format the diskette for you. Thus
once you've gotten StuffIt Expander from
you can use macette to move it from the PC to your Mac.
I've made macette available at my ftp site. See