List of RISC OS filetypes

This is a sub-article to RISC OS.

RISC OS filetypes use metadata to distinguish file formats. Some common file formats from other systems are mapped to filetypes by the MimeMap module.^[1] Such mapping was previously handled by DosMap.^[1]

The MimeMap module maps RISC OS filetypes to and from MIME content types, dotted filename extensions and Apple's Uniform Type Identifiers.^[2]^[3]

Requests for new filetype allocations for all RISC OS versions are handled centrally by RISC OS Open.^[4]

RISC OS filetypes

Filetypes were originally classified by Acorn into distinct ranges:

Hexadecimal range		Designation	Use
Start	End	Designation	Use
000	0FF	User	Unallocated^[5]
100	3FF	Non-commercial software	Allocated^[5]
400	9FF	Commercial software	Allocated^[5]
A00	AFF	Acorn	Reserved^[5]
B00	DFF	Commercial software	Allocated^[5]
E00	FFF	Generic data	Allocated^[5]

User

This range of filetypes was intended for personal use in closed systems, not for general distribution. Nevertheless, many programs using these types were distributed, especially as Public-domain software. Consequently there are many clashes.

000–0FF
Hexadecimal type	Name	Use	Connected party	Mapped equivalent
000	Crunched	Cruncher compressed file	ACE/Arc Angels
000	MusDump	Vivaldi compressed music file
000	STracker	Tracker music file
001	STracker	Amiga ProTracker/NoiseTracker music file	Hugo Fiennes, The Serial Port	`.mod`
001	Castles	Castles game(?) file
002	PlayMod	Music file
002	SampDump	Vivaldi compressed sample
002	STracker	Tracker tune
003	ArmSI	Speed indicator results
004	AOutline	ArcOutline file	Paul Hobbs
004^[5]	AIM	Archimedes Image Manager 256x256 monochrome bitimage	Wild Vision
005	ScotGame	Saved game file
006	ScotSave	Saved game image
006	PathFile	unknown
006^[5]	WildV12	Wild Vision Hawk V12 512x512 monochrome bitimage	Wild Vision
007	LCrypted	Encrypted file
008	GolfDemo	Golf game file
00A	Armony	!Armony music file
00A	IcnStorm	IconStorm sprite file
00B	Matrix	Matrix tracker music file
00B	MegaBord	unknown
00C	Circuit	PCB layout file
00F	Pottery	Solids of Rotation 3D mesh	Acorn User magazine
010	AIMinfo	Archimedes Image Manager file
010	Mailabel	Label printer file
011	HelpText	Help text file
012	AIM Cfg	Archimedes Image Manager configuration file
016	PlnPg	unknown
017	PlanF	unknown
021	compress	Compressed file
022	PGP	Pretty Good Privacy encrypted file
03C	WordSq	Word square puzzle definition	Matthew Eglise
040	Wordsrch	Word search puzzle definition
041	Resource	unknown
041	Widget4	256x256 monochrome bitimage
042	Widget5	512x512 monochrome bitimage
042	SmpleDTP	Simple DTP document
044	Spray	Painting program spray brush
045	FracPars	unknown
046	ColorMap	Bitimage palette file
050	3DPlanes	3D mesh
050	Filer	Filer settings
061	Z-Code1	Infocom adventure game	Infocom
062	Z-Code2	Infocom adventure game
063	Z-Code3	Infocom adventure game
064	Z-Code4	Infocom adventure game
064	C64	Commodore C64 executable
065	Z-Code5	Infocom adventure game
066	Z-Code6	Infocom adventure game
067	Z-Code7	Infocom adventure game
068	Z-Code8	Infocom adventure game
068	BigMArt	BigMArt15 file
069	BigMArt2	BigMArt15 file
070	QuakePAK	Id Quake game archive file
073	Sticky	unknown
077	FTPc	FTPc user menu configuration file
082	TauFile	Tau document	Tim Birks
083	TauStyle	Tau stylesheet	Tim Birks
084	PIC16C84	PIC programmer file	Mike Cook
099	Puzzle	Puzzle game
0AA	Indexer	Indexer file index
0AB	PPPTrack	unknown
0AC	DiscBox	unknown
0AD	Split	Fragment of larger file	Adam Hamilton
0B2	SoftList	unknown
0BA	TaskBAS	BASIC in Taskwindow (replaced by AA5 TskBASIC)
0BB	BBCRun	BBC application script
0BB	MegaBord	unknown
0BC	PCRun	PC application script
0CC	Card	!Card2 file
0CC	HellFile	unknown
0CD	CDTrack	AudioFS2 CD music track
0CE	CDData	AudioFS2 CD data track
0D1	AddrList	Address and contact list
0D7	GameBoy	Nintendo Game Boy emulator game image
0D8	GBSnap	Nintendo Game Boy emulator snapshot
0DC	Keystrip	Keyboard layout
0DE	BackMenu	BackMenu program configuration
0E3	SSSheet	!SSS spreadsheet	Chris Stretch
0ED	SprColor	Sprite extended palette file
0F5	EPSI	Encapsulated PostScript with device independent preview		`.epsi`
0F8	HelpFile	Help text file
0F8	MPEG	MPEG video	Paul LeBeau
0FA	RayMacro	Ray tracer macro
0FB	RayLib	Ray tracer library
0FC	Ray3d	Ray tracer scene
0FD	F-Shapes	unknown
0FD	Probase	Probase database file
0FD	Z88Link	Cambridge Computer Z88 Link archive file	John Allen
0FE	Psion	Psion Organiser II file	John Allen
0FE	F-Pal	unknown
0FF	Used	A file that has been used
0FF	FineArt	FineArt drawing
0FF	Diss	unknown
0FF	F-Paper	unknown
Hexadecimal type	Name	Use	Connected party	Mapped equivalent

Non-commercial software

100–3FF
Hexadecimal type	Name	Use	Registrant or connected party	Mapped equivalent
100	1stSheet	1st Statistics package
100	BackDrop	Desktop background setup
101	CalcSprd	Calc spreadsheet file
101	Phone	unknown
102	SpllDict	Spelling dictionary
102	Perl	Perl programming language script		`.pl`
103	UniMode	Screen mode definition	Maurice Hendrix
107	OreDBase	Oregan database file
108	DataVox	SysBeep sound file
109	Glazier	unknown
10A	SySample	Digital Symphony sound sample
10B	Symphony	Digital Symphony song
10C	Keyboard	Keyboard layout
10F	CLIcon	IconCLI file	Olly Bett
110	RLaB	unknown
111	MSDOS	PKArc archive file	David Pilling
111	MatLabSc	MatLab file
111	RSDOS	unknown
112	MatLabFn	MatLab function
112	Stasis	unknown
113	FastSpr	Sprite file
113	ProjMan	Project management file
113	MoleAnim	Modeller molecular animation
116	DemoMole	Modeller molecular animation demonstration
118	Angband	Angband saved game file
11A	Z-Code	Infocom game file	Infocom
11D	TAP	Z80Em compressed sound sample	Warm Silence Software	`.tap`
120	ANSIText	Text in ANSI (Windows) encoding
122	Genetic	Genetic algorithm data
123	Creator	unknown
123	ALPS	unknown	Alpine Software
127	MOPAC	RasMol molecule definition	Roger Sayle, Martin Wuerthner
128	MOL	RasMol molecule definition	Roger Sayle, Martin Wuerthner
128	Pifile	unknown
129	Alchemy	RasMol molecular coordinates	Roger Sayle, Martin Wuerthner
12A	PDB	RasMol protein databank coordinates	Roger Sayle, Martin Wuerthner
12B	RasMolSc	RasMol script	Roger Sayle, Martin Wuerthner
130	AntiGrav	unknown
138	MapprMap	Mapper_O 2D map	Nicholas Kingsley
139	3DScene	TopModel 3D scene
13C	JFPatch	Assembler patch file	Justin Fletcher
144	Copier144	unknown
152	PolyData	Polyhedron definition	Fortran Friends
153	Cabri	Cabriolet dynamic geometry	Mike Borcherds	`.sna`
154	SR2000	unknown
156	PsiWord	Psion Series 5/7 document	Psion
156	Squished	Compressed file
157	PsiSheet	Psion Series 5/7 spreadsheet	Psion
157	Playlist	unknown
158	Psion	Psion Series 5/7 general file	Psion
159	PsiRecrd	Psion Series 5/7 audio	Psion
15A	PsiOPL	Psion Series 5/7 OPL (Organiser Programming Language) program	Psion
15B	PsiData	Psion Series 5/7 database	Psion
15C	PsiAgnda	Psion Series 5/7 Agenda appointments diary	Psion
160	Copier160	unknown
164	Copier164	unknown
164	C64-Disc	Commodore C64 archive		`.D64`
16D	OrgData	Organizer appointment diary & contacts
172	Copier172	unknown
180	Copier180	unknown
180	Mail	TransArc mail file
188	Flash	Adobe Flash animation	Adobe Inc.	`.swf`
198	Encoded4	Arc World Encoder output
199	Encode4	Arc World Encoder input
1A0	TSAC	unknown
1AA	CSSC	CSSC file	Raffaele Ferrigno
1AB	Address	Address book file	Alex Hopkins
1AC	Project	unknown
1AD	AMPEG	Audio MPEG stream		`.mp2`
1AD	Protector	unknown
1BC	Imagen	HTML image map
1C0	JSW_Game	Jet Set Willy game
1C1	JSW_Data	Jet Set Willy scenery file
1CA	HotKeys	Key accelerator definition
1CF	Conjugez	unknown
1DF	Objects	unknown
1EC	Crypt	Encrypted file	Stephen Early
1F1	Tiles	unknown
1FF	TData	Tiger file	Graham Crow
1FF	OldSong	unknown
200	CAIFSArc	Archive file
200	CFCirc	unknown
200	GraphSrc	unknown
201	Z80 COM	Z80Tube executable file
202	Song	Mascom2 song	Thomas Olsson
204	Typeface	Italicer Typeface file	A.E.Hersee
222	DateMark	unknown
300^[6]		TimeStep ImProcess
371^[6]		RayShade RGB
Hexadecimal type	Name	Use	Registrant or connected party	Mapped equivalent

Commercial software

400–9FF, B00–DFF
Hexadecimal type	Name	Use	Registrant or connected party	Mapped equivalent
601^[6]		CCIR 601	Comité consultatif international pour la radio
690^[6]		Translator Clear	John Kortink
691^[6]		Atari ST DEGAS		`.pi1`, `.pi2`, `.pi3`
695	GIF	GIF File
697^[6]		PC Paintbrush	ZSoft Corporation	`.pcx`
698^[6]		RayShade RAW	Steve Koren	`.qrt`
699^[6]		RayShade	Mark Terrence VandeWettering	`.pic`
69D^[6]	Targa	Truevision TGA	Truevision	`.tga`, `.vda`
7A0^[6]		TimeStep satellite image
B22	BBC Micro DFS disc image	BeebIt	Michael Foot	`.ssd`
B27	OvnPro	Ovation Pro document	David Pilling
BA6	Excel	Microsoft Excel	Microsoft	`.xls`
BBC^[5]	BBC ROM	BBC ROM (ROMFS)	Acornsoft
BDF	Firewrkz	Fireworkz	Colton Software	`.fwk`
BE0	Recordz	Fireworkz Database File	Colton Software
BE1	Resultz	Fireworkz Spreadsheet File	Colton Software
BE8^[6]		PhotoCD	Eastman Kodak	`.pcd`
C1C	Workz	Fireworkz Word Processor	Colton Software
C1D	FwrkzTem	Fireworkz Template File	Colton Software	`.fwt`
C1E	FwrkzTem	Fireworkz Command File	Colton Software	`.fwc`
C25^[5]	AWord	Acorn Advance Wordprocessor	Acornsoft
C26^[5]	ASheet	Acorn Advance Spreadsheet	Acornsoft
C27^[5]	ADBase	Acorn Advance Database	Acornsoft
C28^[5]	AGraph	Acorn Advance Graph	Acornsoft
C32	RTF	Rich Text Format		`.rtf`
C4B	CmprDraw	Compressed Draw File	4Mation
C6A	smArt	smArt File	4Mation
C6B	NootBook	Noot File	4Mation
C85^[5]^[6]	JPEG	JPEG	Joint Photographic Experts Group	`.jpg`, `.jpeg`
CAE^[5]	HPGLPlot	Hewlett-Packard graphics language	Hewlett-Packard
CAF^[5]	IGES	IGES graphics
CC3	Poster	Poster File	4Mation
CDD	Ovation	Ovation DTP File
CE5^[5]	TeX	TeX
D21	PDCmdFile	PipeDream Command File	Colton Software	`.pd`
DB0^[5]	Lotus 1-2-3	Lotus 1-2-3		`.wk1`
DB1^[5]	DBaseIndex	dBase index
DB2^[5]	DBaseII	dBase II
DB3^[5]	DBaseIII	dBase III
DB4^[5]	SuperCalc	SuperCalc III
DDC	Archive	Zip (SparkFS/ArcFS)	David Pilling/Mark Smith	`.zip`
DDE	PDream	PipeDream	Colton Software	`.pd`
DE2^[6]		ProArtisan	Clares Micro Supplies
DEA^[5]	DXF	Drawing Exchange Format		`.dxf`
DFA^[6]		Watford digitiser	Watford Electronics
DFE^[5]	CSV	Comma-separated values		`.csv`
Hexadecimal type	Name	Use	Registrant or connected party	Mapped equivalent

Acorn reserved

A00–AFF
Hexadecimal type	Name	Use	Mapped equivalent
AAE	OrUpgrd	Oregano upgrade
AB7	PPD	PostScript Printer Description	`.ppd`
AB9	Monitor	Cerilica Monitor gamma correction curves
ABB	PlugIn	Cerilica Vantage plug-in
ACA	LaTeX	LaTeX document source
ACC	ISO-9660	CD-Blaze CD image	`.iso`
ADB^[5]	New Font	Outline font
ADF	PDF	Portable Document Format	`.pdf`
AE3	Director	Macromedia Director animation
AE4	Java	Java executable
AE6	MSWord	Microsoft Word Document	`.doc`
AE7	Replay	Acorn Replay video
AE8		Generic Saved Game
AE9^[5]	Alarm	Alarm settings
AF0^[5]	ARCWriter	ArcWriter document
AF1^[5]	Music	Maestro musical score
AF2	PostTray	Acorn Mailman Intray
AF3	PostBox	Acorn Mailman mail received
AF4	PostFile	Acorn Mailman filed mail
AF5	PostData	Acorn Mailman setup
AF6	SimTrace	Acorn ASim trace file
AF7^[5]	HelpInfo	Help
AF8^[5]	1stWord+	First Word Plus
AF9^[5]	DtpDoc	Acorn DTP document
AFA^[5]	DtpStyle	Acorn DTP style sheet
AFC	GCODE	Acorn GCODE intermediate file
AFD	GCAL	Acorn GCAL source file
AFE^[5]	Mouse	Mouse event record
AFF^[5]	DrawFile	Draw vector drawing	`.drw`^[7]
Hexadecimal type	Name	Use	Mapped equivalent

Generic data

E00–FFF
Hexadecimal type	Name	Use	Connected party	Mapped equivalent
E13	Drummer	The Drummer drum pattern
E92	DiscIndx	Disc index
ECB	PCBFile	PCB track layout file
ECD	TeleSoft	unknown
ECF	ECFData	Clares Pro-Artisan extended colour fill
ED0	RawSound	DSEdit audio
ED1	EdSProg	EdScheme file	Lambda Publications
EEA	TinyLogo	Tiny Logo program
EEB	TinyDraw	Tiny Logo drawing
F09	WiniUtil	BBC Micro Winchester Utility	Acorn
F0E	BasicIV	BBC Master 128 BASIC
F1B	65Host	Acorn BBC Micro Emulator file	Acorn
F7C	Teletext	Teletext screen data
F89	GZip	GNU Zip archive		`.gz`
F95	Code	Acorn ARM code	Acorn
F9D	DiscCD	Acorn Access shared CD	Acorn
F9E	DiscDP	Acorn Access shared protected disc	Acorn
F9F	DiscD	Acorn Access shared disc	Acorn
FA2	HomeWrks	Document
FA8	EasyData	Database
FAA	UtlLabel	Labelling file
FAF	HTML	HyperText Markup Language document		`.htm`
FB0	Allocate	Acorn resource allocation file	Acorn RISC OS Open Ltd
FB1	Wave	RIFF format audio		`.wav`
FB2	MovieFS	Microsoft Windows Video/Apple QuickTime video	Warm Silence Software	`.mov` `.avi` `.fli`
FB4	DiscR	Acorn Access shared resources directory	Acorn
FB5	NoDisc	Acorn Access missing shared disc	Acorn
FBC	PBAbacus	Acorn PocketBook/Psion Series III spreadsheet	Acorn, Psion
FBD	PBWrite	Acorn PocketBook/Psion Series III word processor document	Acorn, Psion
FBE	PBCards	Acorn PocketBook/Psion Series III database	Acorn, Psion
FC0	Link	LinkFS symbolic link
FC2	AIFF	Audio IFF		`.aif`
FC3	Patch	Acorn application patch file	Acorn
FC6	PrntDefn	Acorn !Printers printer definition file	Acorn
FC8^[5]	DOSDisc	DOS MultiFS disc image
FC9^[5]	SunRastr	Sun raster	Sun Microsystems	`.ras`
FCA^[5]	Squash	Single compressed file	Acorn
FCC^[5]	Device	Device object within DeviceFS	Acorn
FCD^[5]	HardDisc	FileCore hard disc image	Acorn
FCE^[5]	Floppy	FileCore floppy disc image	Acorn
FCF^[5]	Cache	Acorn FontManager font cache file	Acorn
FD0^[5]	PCEmConf	PC Emulator configuration	Acorn
FD1^[5]	BASICTxt	BASIC stored as text	Acorn
FD2	ScrDiff	Acorn file	Acorn
FD3^[5]	DebImage	Acorn DDE debuggable image	Acorn, Codemist
FD4^[5]	MIDI	MIDI	MIDI Manufacturers Association	`.mid`, `.smf`
FD5^[5]	Pict	PICT	Apple Inc.	`.pict`, `.pct`, `.pic`
FD6^[5]	TaskExec	Exec (scripting language) file within taskwindow	Acorn
FD7^[5]	TaskObey	Obey file within taskwindow	Acorn
FD8^[5]	MSDOScom	PC Emulator DOS command file	Digital Research	.com
FD9^[5]	MSDOSexe	PC Emulator DOS executable file	Digital Research	.exe
FDA^[5]	MSDOSbat	PC Emulator DOS batch file	Digital Research	.bat
FDB^[5]	TextCRLF	Text using CR and LF for line ends		`.txt`
FDC^[5]	SoftLink	TCP/IP suite: unresolvable UNIX soft link
FDD^[5]	MasterUtl	BBC Master utility	Acorn
FDE^[5]	VTSetup	TCP/IP suite: VT220 setup	Digital Equipment Corporation
FDF^[5]	VTScript	TCP/IP suite: VT220 script	Digital Equipment Corporation
FE0	Accessry	Acorn Arthur desktop accessory	Acorn
FE1^[5]	Make	Acorn Makefile	Acorn
FE2^[5]	Amiga	Commodore Amiga file	Commodore International, Arxe Systems
FE3^[5]	Atari	Atari file	Atari, Arxe Systems
FE4^[5]	DOS	DOS file	Digital Research, Microsoft, Arxe Systems
FE5	EPROM	BBC Micro sideways ROM image	Acorn
FE6^[5]	UNIX Ex	Unix executable	AT&T Corporation
FE7^[5]	ViewSht	Acorn ViewSheet spreadsheet	Acornsoft
FE8^[5]	ViewPS	Acorn ViewPS "View Professional" word processor	Acornsoft
FE9^[5]	ViewWord	Acorn View word processor	Acornsoft
FEA^[5]	Desktop	Desktop command file	Acorn
FEB^[5]	Obey	Obey command file	Acorn
FEC^[5]	Template	Window template file	Acorn
FED^[5]	Palette	Palette data	Acorn
FF0^[5]^[6]	TIFF	Tagged Image File Format	Aldus Corporation	`.tiff`, `.tif`
FF1^[5]	RawData	Raw unprocessed data (e.g. terminal streams)	Acorn
FF2^[5]	Config	Configuration (CMOS RAM)	Acorn
FF3^[5]	LaserJet	HP LaserJet data file	Hewlett-Packard
FF4^[5]	Printout	Dot matrix printer data file (various formats)	Acorn
FF5^[5]	PoScript	Adobe PostScript file	Adobe Systems	`.ps`
FF6^[5]	Font	Acorn format outline or bitmap font	Acorn
FF7^[5]	BBC font	BBC font file (sequence of VDU operations)	Acorn
FF8^[5]	Absolute, also Acorn Image Format^[8]	Absolute application loaded at &8000	Acorn
FF9^[5]	Sprite	Sprite or saved screen	Acorn
FFA^[5]	Module	Relocatable module	Acorn
FFB^[5]	BASIC	Tokenised BASIC program	Acorn	`.bas`
FFC^[5]	Utility	Position independent code	Acorn
FFD^[5]	Data	Data	Acorn	`.dat`
FFE^[5]	Command	Command (Exec) file	Acorn
FFF^[5]	Text	Plain ASCII text with LF newlines		`.txt`
Hexadecimal type	Name	Use	Connected party	Mapped equivalent