AAA//
A file reserved for RiscOS 3.%

ADB//
An Outline Font. The outline of each/ 
character has been recorded as a Bezier curve/
so that they can be reproduced easily at any/
point size. Cunning, eh?%

ADE/*/
A text file that has been encryted by !Safe./
!Safe is an encryption program (not Public/ 
Key Encryption, as far as I know) which stops/
unwanted people reading your files.%

AE7/*/
An ARMovie file. ARMovie is a file containing/
both stereo sound and moving images, and it/
is used by Magpie.%

AE9/*/
A Risc OS 3 Alarms file. Holds the times/
when the alarms should go off, and what they/
should say when they do.%

AEA//
A DBChart file.%

AEB//
A DBReport file.%

AEC//
A DBFile.%

AED/*/
A Configuration file for Clares' spread/
sheet !Schema.%

AEE/*/
A Macro file for Clares' spread sheet/
!Schema.%

AEF/*/
A saved data file from Clares' spread sheet/
!Schema.%

AF0//
An ArcWriter file. This is according to the/
Risc OS 2 PRMs. Never seen one, myself.%

AF1/*/
A Maestro file. Maestro is the music program/
that is supplied with the computer on one of/
the apps discs.%

AF2//
Apparently a Mail "In Tray".%

AF3//
A Mail Postbox. It says so in the PRM.%

AF4//
A Mail Filed file.%

AF5//
A setup file for Mail.%

AF6//
An ASim trace file.%

AF7//
A Help file. Apparently. I dunno what for.%

AF8/*/
A First Word Plus document. 1st Word+ is/
free with the Acorn Learning Curve, and is a/
decent (but not brilliant) Word Processor.%

AF9/*/
An Acorn DTP Documents file. DTP does not/
stand for Down The Pub, but for Desk Top/
Publishing. Acorn DTP is OK, but has been/
rendered obsolete by Impression 2.%

AFA/*/
An Acorn DTP Style file. This holds the style/
of a document, but not the text.%

AFC//
A GCODE intermediate file.%

AFD//
A GCAL source file. GCAL is a typesetting/
language, working in a similar way to TeX./
Some people prefer GCAL, some prefer TeX./
Me, I prefer Impression.%

AFE//
A Mouse Event Record file. This allows you to/
record the moves made by the mouse, and then/
to replay them. Not stunningly useful, as the/
desktop could have changed in the meantime.%

AFF/*/
A Draw file. Draw is a line drawing program/
which comes on one of the apps discs. But,/
Jonathan Marten has produced a much improved/
version called Draw+.%