[comp.sys.mac] ftp and downloading to mac

ian@inmet.UUCP (01/12/88)

What do the various extensions (.HQX, etc) mean at sumex?
How do i download them correctly?  Is HQX binhex?  Do i download
binary or ascii?  etc.
Assuming i then download from mainframe to mac, what protocols?

Sorry.  I'm sure this must be a repeat.  Please mail the answer if so.
Thanks!