This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
I prefer More Info or Disk Witch, myself. I'll go through a list of stuff
on my hard drive to manipulate filetypes:
DAs:
Alter (NDA)
Conchshell (CDA)
Disk Witch (CDA)
File Manager (NDA)
File Info2 (NDA)
File Info Edit (NDA)
Super Info II (NDA)
Utilities CDA (CDA), not very good
Finder Extras:
More Info
GS/OS Applications
Instant Access
File Passage
ProDOS 8
FAZ II (File Attribute Zap II)
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By: Boris Guenter
File-A-Trix by Karl Bunker should do the job. Best of all, the latest (and
last) version 1.1.1 of this program is freeware.
Since I had a few troubles with the latest version, I suggest trying both
versions 1.1 and 1.1.1.
----------------------------
By: Tony Ward
I also prefer File-A-Trix. It performs a wide variety of functions including
copy, move, delete, rename, catalog, make new folder, set file attributes
(lock, unlock, filetype, auxtype), find file, format (floppy only), view text,
Teach and AWP files. Best of all, it's a CDA that works from GS/OS and ProDOS
8, although there are some restrictions under P8 (ie. no HFS disk access, no
viewing forked Teach files, etc.)
----------------------------
By: Gareth Jones
I use either File-A-Trix, Change-A-File 4.20, or Deliverance (part of the
Salvation Utilities).
----------------------------
By: Rubywand
Some programs which can be used to change filetype are ...
Jeff Hartkoph's File Manager- a GS NDA which lets you change Type, Auxtype,
Date, and Access attributes. It is handy for modifying several files in quick
succession.
Paul Parkhurst's PMPunZip- a GS application which includes an option for
changing Type, Auxtype, and Access attributes. (In the File menu click on
Modify File Attributes.)
Glen Bredon's ProSel (ProDOS 8 utilities)
Roger Wagner's Filetype Changer- a vintage BASIC utility which lets you change
just the Type. A BRUN-able .BIN version is on Ground. (This is good enough for
getting the GS-ShrinkIt .SEA file's filetype set correctly so that it can self-
extract.)
----------------------------
By: Beverly Cadieux
And a biggie - AppleWorks v5.1-> File Activities, Change File Type.
----------------------------
By: Jay Edwards
TimeOut FileMaster does a great job and never argues about it. Best of
all, it likes so many versions of AppleWorks.
By: Rubywand
 
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