FFF	Text	ASCII text
FFE	Command	CLI Commands
FFD	Data	Arbitrary data
FFC	Utility	Transient program
FFB	BASIC	Tokenised BASIC program
FFA	Module	Relocatable code module
FF9	Sprite	Picture or saved screen
FF8	Absolute	Absolute ARM code, (loaded at &8000)
FF7	BBC font	BBC font, (VDU code sequence)
FF6	Font	Outline font, 1bpp or 4bpp bitmap
FF5	PoScript	PostScript
FF4	Printout	Dot-matrix printout
FF3	LaserJet	HP LaserJet print data (PCL)
FF2	Config	240 byte CMOS RAM configuration
FF1	RawData	Raw unprocessed data
FF0	TIFF	Tagged Image File Format picture
FEF	Diary	Arthur desktop diary
FEE	NotePad	Arthur desktop notepad
FED	Palette	Desktop palette
FEC	Template	Window templates
FEB	Obey	CLI commands
FEA	Desktop	Desktop setup
FE9	ViewWord	View word processor
FE8	ViewPS	View word processor
FE7	ViewSht	ViewSheet spreadsheet
FE6	UNIX Ex	
FE5	ROM	OS softload image (or EPROM)
FE4	DOS	IBM PC disc file
FE3	Atari	Atari ST disc file (or ST)
FE2	Amiga	Commodore Amiga disc file (or CBM)
FE1	Makefile	DDE Make Makefile
FE0	Accessry	Arthur desktop accessory (obsolete)
FDF	VTScript	TCP/IP
FDE	VTSetup	TCP/IP
FDD	MasterUt	BBC Master utilities
FDC	SoftLink	
FDB	TextCRLF	
FDA	MSDOSbat	Windows batch file
FD9	MSDOSexe	Windows executable
FD8	MSDOScom	Windows command file
FD7	TaskObey	*Obey in a TaskWindow
FD6	TaskExec	*Exec in a TaskWindow
FD5	Pict	Macintosh Pict metafile
FD4	MIDI	Musical Instrument Digital Interface
FD3	DebImage	DDE Debug file
FD2	ScrDiff	
FD1	BASICTxt	DeskEdit Basic program in text form
FD0	PCConfig	PC Emulator configuration
FCF	Cache	FontCache
FCE	Floppy	Filecore floppy disc image
FCD	HardDisc	Filecore hard disc image
FCC	Device	Device
FCA	Squash	Compressed file
FC9	SunRastr	Sun Microsystems raster file
FC8	DOSDisc	DOS Disc
FC7	MacType1	Mac format PostScript Type1 font
FC6	PrintDfn	Printer definition
FC3	Patch	Risc OS 3 Patch
FC2	AIFF	Audio IFF
FC0	Link	Symbolic link
FBE	PBCards	PocketFS
FBD	PBWrite	PocketFS
FBC	PBAbacus	PocketFS
FB5	NoDisc	Acorn Access
FB4	DiscR	Acorn Access
FB2	MovieFS	Video
FB1	WAV	Sound sample, many sub-formats
FB0	Allocate	RISC OS name allocation request
FAF	HTML	Hypertext markup language
FAE	Resource	Toolbox UI definition
FAC	HCL	HyperCard Language
FAB	KnowBase	Expert system
FAA	STimage	Smalltalk image/snapshot file
FAA	UtlLabel	Unused?
FA8	EasyData	
FA2	HomeWrks	
F9F	DiscD	Acorn Access
F9E	DiscDP	Acorn Access
F9D	DiscCD	Acorn Access
F98	PhotoShp	Adobe Photoshop picture
F95	Code	Parallel of Data (FFD)
F91	URI	Uniform Resource Indicator
F89	GZip	Gzip, (GNU Zip)
F88	RealAud	Real compressed audio
F83	MNG	Motion Network Graphics animation
F81	JSScript	JavaScript
F80	XML	eXtended Markup Language files
F7C	Teletext	Teletext screen data
F7B	Obey26	26-bit only Obey file
F7A	Basic26	26-bit only BASIC file
F79	CSS	Cascading Style Sheet
F78	JNG	Joint Network Graphics picture
F77	Squarc	Archive
F76	EDID	Binary EDID dump
F75	JSON	JavaScript Object Notation file
F74	YAML	YAML Ain’t Markup Language file
F1B	65Host	Usually a Basic program
F19	BasicII	BBC Basic from BBC Micro
F12	BasicNt	BBC Basic from MasterET
F0E	EconetUt	BBC Econet Utility
F0E	BasicIV	BBC Basic from Master128
F09	WiniUtil	BBC Winchester Utility
EEB	TinyDraw	
EEB	ScrnTurt	ScreenTurtle logo definitions
EEA	TinyLogo	
EEA	ScrnTurt	ScreenTurtle compressed screens
ED1	EdSProg	Script for EdScheme: Scheme + turtle graphics + editor
ED1	ComSound	Com sound
ED0	RawSound	Raw sound sample
ED0	DSEdSmpl	Raw sound sample
ECF	ECFData	Pro-Artisan extended colour fill
ECD	TeleSoft	
ECB	PCBFile	
E92	DiscIndx	
E1F	ELF	ELF format executable
E13	Drummer	The Drummer
DFF	Logistix	Logistix data
DFE	CSV	Comma separated value spreadsheet
DFD	DIF	
DFC	LogoExt	Logo extensions
DFB	LookUp	Watford Video Digitiser lookup
DFA	Picture	Watford Video Digitiser picture
DF9	Waveform	SoundSynth waveform
DF9	SndSynth	Sound (not official?)
DF6	CDImage	CD ROM image
DF6	ISOImage	CDROM image
DF2	DFSDisc	BBC Micro floppy image
DF0	Font	AMS Finesse Paint
DEF	Pattern	AMS Finesse Paint
DEE	Canvas	AMS Finesse Paint
DED	Finesse	AMS Finesse Paint
DED	Recycled	Discarded file
DEC	SLD	AutoSketch
DEC	DiscRec	Disc Record
DEB	PLT	AutoSketch
DEA	DXF	Data eXchange Format, AutoSketch, AutoCAD
DE9	SKD	AutoSketch SKD
DE8	SD+Data	System Delta Plus data
DE7	SD+Form	System Delta Plus form
DE6	SG+Graph	System Gamma graph
DE5	SG+Macro	System Gamma macro
DE4	Sheet	System Sigma spreadsheet
DE3	SSMacro	System Sigma macro
DE2	ProArt	Pro-Artisan compressed screen
DE2	XarcPic	compressed picture
DE1	Euclid	Euclid 3D object
DE0	Sibelius	Sibelius info
DDF	Logistix	
DDF	Genesis	Sibelius music
DDF	Disk manager index	
DDE	PDream	PipeDream document
DDD	Wilson	unused
DDD	GhostDir	Symbolic link
DDC	Archive	Compressed archive
DDB	MapData	MapData
DDA	ColSet	Pro-Artisan colour set
DD9	MagicPen	Pro-Artisan magic brush
DD8	ProFont	Pro-Artisan font
DD7	Bezier	Pro-Artisan bezier curves
DD6	PAX	PAX art package
DD5	HD Log	Hard disc archiver backup log
DD4	HDArch	Hard disc archiver
DD3	Prisma3	Prisma3
DD2	PlutoFnt	Pluto font
DD1	PlutoFIF	Pluto font info
DD0	BNI_Data	Monitor system
DCF	Song	
DCE	Pattern	
DCD	Track	
DCC	Arrange	
DCB	VoiceSet	Studio24+ DrumList/MidiList/ClipList
DCA	Conductr	Studio24+ graphics
DC9	ClipBord	Studio24+
DC8	Song	
DC8	Graphic	
DC7	Rhythm	
DC6	Score	Studio24+ clipboard
DC5	ScnMusic	Studio24+ conductor
DC4	VidData	Studio24+ voice set
DC3	Overlays	Studio24+ arrangement
DC2	NMEs	Studio24+ track
DC1	Text	Studio24+ pattern
DC0	MDMMusic	Studio24+ song
DB8	DataKing	
DB7	Squirrel	Squirrel data
DB6	DToBase	Desktop Office
DB5	DataVision	Silcon Vision DataVision
DB4	SuperCalc3	
DB3	DBaseIII	DBase III database
DB2	DBaseII	DBase II database
DB1	DBaseInd	DBase index database
DB0	Lotus123	Lotus 1-2-3 spreadsheet
DAF	VPalette	
DAF	Sound	Armadillo Sound Sample
DAF	Magpie?	Magpie music
DAE	Fourier?	FourierTrns Fourier transform
DAE	HNCode	Armadillo HighNote module
DAD	HNData	Armadillo HighNote sound
DAC	HNConfig	Armadillo HighNote config
DA0	VPScript	
D98	PackFile	Archive
D97	Address	Address book
D96	CFSlzw	!CFS compressed file
D95	ArtWkMod	Artworks extension
D94	Artworks	Drawing
D93	DDF	Impression Document Description Format
D92	Screen	LaserDirect halftone screen
D91	Equasor	Equasor equations
D90	DataBase	
D90	FaxExec	unused
D8F	CCRTF	unused
D8E	ABIDefs	Application Binary Interface UI definitions
D8D	LDirect	Laser Direct printer file
D8C	GreyMap	unused
D8B	Abbrev	Spell checker abreviation dictionary
D8A	Excep’ns	Spell checker exception dictionary
D89	IModule	Impression Imodule
D88	Stories	Impression stories
D87	DocData	Impression document data
D86	CCcolour	unused
D85	FaxImage	CC FaxPack picture
D84	Diction	Impression Junior spelling dictionary
D83	Ignore	Impression II/Impression Junior ignore list
D82	IChart	InterChart chart
D81	ISheet	InterSheet spreadsheet
D80	IWord	InterWord word processor document
D7F	ComSprit	Atelier compacted sprite
D7E	MinBrush	Atelier user-defined brush
D7D	MinAnim	Atelier animation sequence
D7C	HomeAcct	Home accounts
D7B	DeltaSet	System Delta Plus MultiStore setup
D7A	Min3DObj	3-D object
D79	Min24Bit	24-bit screen
D78	FamTree	Family tree
D77	FamTreeA	Family tree ancillary
D76	MitDiary	Diary
D76	MitDiary	
D75	MitProje	Project
D74	TypeFile	
D74	MitBakup	DiscTree backup
D73	MitBScpt	DiscTree backup script
D72	ForthSrc	Forth source
D71	ForthDat	Forth
D70	PlutoPal	Pluto palette
D6F	PlBBCFnt	Pluto BBC font
D6E	PlBBCFIF	Pluto BBC font info
D6D	PlBBCPic	Pluto old RLE picture
D6C	PlDesPic	Pluto designer picture
D6B	PlComScr	Pluto compressed screen
D6A	AceFilm	Projector/Euclid compressed screen image sequence
D69	M3Spread	Matrix3 spreadsheet
D68	M3Exec	Matrix3 executable
D67	M3Conf	Matrix3 configuration
D66	Viewdata	Hearsay Viewdata frame
D66	ViewData	
D66	PAX picture	
D65	HSStatus	Hearsay status
D64	HSTelDir	Hearsay telephone directory
D63	HSSetup	Hearsay setup
D62	BNI_sp	ElectroPhysical Workstation single-precision data
D61	BNI_dp	ElectroPhysical Workstation double-precision data
D60	BNI_sd	ElectroPhysical Workstation standard deviation data
D5F	BNI_pd	ElectroPhysical Workstation patient data
D5E	BNI_mes	ElectroPhysical Workstation derived measures
D5D	BNI_map	ElectroPhysical Workstation topographic map
D5C	BNI_plot	ElectroPhysical Workstation plotter defaults
D5B	BNI_defm	ElectroPhysical Workstation default measures
D5A	BNI_grap	ElectroPhysical Workstation stored graph
D59	RendScen	RenderBender scene description
D58	RendPic	RenderBender compressed pictures
D57	RendAnim	RenderBender/!Translatr animation
D56	ING	Interactive Network Graphics
D55	HyperTxt	Hypertext
D54	TimeTabl	Timetable control
D53	TTData	Timetable support
D52	ISOCObj	ISO C AOF object code
D51	ISOCLib	ISO C library
D50	ISOCDbug	ISO C debug
D4F	Colours	Virtual Palettes
D4E	Archive	Tape Archiver
D4D	Archway	Archway DIY programming suite
D4C	SprScan	
D4B	DigiSim	
D4A	APL	I-APL
D49	Book	HyperBook book
D48	Notes	HyperBook notes
D47	Index	HyperBook indexes
D46	Glossary	HyperBook glossaries
D45	Vocablry	HyperBook/Numerator vocabularies
D44	Numrator	Numerator workspaces
D43	Modules	Numerator modules
D42	InData	Numerator input
D41	WordList	
D41	OutData	Numerator output
D41	List	PenDown word list
D40	PDDoc	PenDown
D40	Help	Numerator help
D3F	FSPaths	Instigator
D3E	FNKeys	Instigator
D3D	OSVars	Instigator
D3C	Sample	!Armadeus, (registered as armSamps")"
D3C	Armadeus	Sound sample
D3C	LinSignd	
D3B	Song	Music track containing sample + loop points
D3A	Patterns	Atelier patterns
D39	Formulae	Atelier formulae
D38	Screen	
D37	Compress	
D36	Captured	
D35	Sheet	
D34	MacroLib	
D33	Profile3	HearSay/ArcComm Videotex profile 3, (Prestel) frame store
D32	Profile2	HearSay/ArcComm Videotex profile 2, (Tltel) frame store
D31	Profile1	ArcComm Videotex profile 1, (Bildschirmtext) frame store
D30	DToComms	DesktopOffice
D30	CommProc	ArcComm procedure,(text)
D2F	CommMail	ArcComm mailbox text,(binary)
D2E	Presentr	Presenter
D2D	DOSFile	
D2C	ARMInst	
D2B	AtelSeq	Atelier sequence
D2A	Magazine	
D29	Proman	
D28	GIPAL	
D27	GIData	
D26	PremDoc	Premier document
D26	KML	Route data e.g. GPS
D25	PremCmd	Premier command
D24	PremData	Premier
D23	Lisp	
D22	LispText	
D21	PDCmdFil	PipeDream macro (commands)
D20	APECImag	APEC ROM image
D1F	PALData	PAL programmer fuse image
D1E	DiscDump	Investigator2 dump
D1D	Labels	LabelMaster+
D1C	ArcScan	ArcScan bibliographic database
D1B	Frame	
D1A	Tformat	!Titler
D1A	Grid	
D19	Menu	!Menu Waiter
D18	Quest	Quest
D17	CmunITel	CommunITelFrame
D16	Mode7	1K mode 7 screen image
D15	MitLnkDf	Front linker driver
D14	MitMak	CFront MakeFile
D13	Batch	
D12	DBRiscOS	
D11	Pointers	
D10	SatPict	
D0C	1WPDict	First Word Plus spelling dictionary
D0B	1WPCfg	First Word Plus printer configuration
D09	Action	Tween action
D08	Genesis	Genesis script
D07	Genesis	Genesis button
D01	EasiDoc	EasiWriter
D00	EasiPad	EasiWriter
CFF	CFF Font	Compact Font Format font
CFF	EasiDict	EasiWriter
CF9	TWScript	TwEdit
CF8	Alps	ALPS (Alpine Software)
CF7	Schema	CadMust PCB Schematic
CF6	PCB	CadMust PCB
CF3	Standings	Chequered Flag
CF2	Circuit	Chequered Flag
CF1	Champ’s	Chequered Flag
CF0	Standings	Chequered Flag
CED	WCADFile	Worra CAD
CEB	KiddiCAD	Kiddi CAD
CEA	WorraCAD	Worra CAD
CE9	KeyAuth	Key Plus
CE8	KeyFile	Key Plus
CE7	KeyCalc	Key Plus
CE6	KeyMap	Key Plus
CE5	TeX	TeX source
CE4	DVI	DVI, (TeX) output
CE2	Tripfile	
CDD	Ovation	Ovation DTP document
CDC	OvnStyle	Ovation DTP style sheet
CD5	Tabs	
CD3	SolidCAD	Silicon Vision’s Solid CAD
CD3	Quick Art / High Art	
CD2	TripFile	
CD2	FilmPath	
CCF	LotusPic	Lotus picture
CCD	WaveLength	
CCC	MayJong	
CCC	DietSprite	
CC7	DToWord	DesktopOffice
CC6	DToSheet	DesktopOffice wordprocessor
CC5	TeqMusic	Music track. Same format as &701
CC3	Poster	Poster File
CC2	SnapShot	SnapShot colour digitiser, (enhanced?) image
CC1	Image	ArcImage
CBF	Or_Setup	!Orrery
CBA	Karma	!Karma saved game
CB9	Perform	
CB8	CashWide	
CB8	7Script	ArcTerm7 command script
CB7	7BatCfg	ArcTerm7 batch or configuration
CB6	STModule	Sound Tracker music sequence and samples
CB6	ArcTrack	
CB5	STSample	STracker SoundTracker sample
CB4	Cash Nar	
CB4	C64_Musi	C64 music track
CB2	PDTMovie	Parametric Design Tool movie
CB1	PDT Snap	Parametric Design Tool picture
CB0	PDT Cfg	Parametric Design Tool configuration
CAF	IGES	Industry standard graphics
CAE	HPGLPlot	Hewlett-Packard Graphics Language drawing
CAD	PDT Dwg	Parametric Design Tool drawing
CAC	Document	Dekstop Folio document
CAB	Paper	Desktop Folio paper
CA7	Concept	
CA6	Vector	Illusionist Vector
CA5	Sweep	Illusionist Sweep
CA3	PK	TeX font bitmaps (compressed)
CA2	GF	TeX font bitmaps (uncompressed)
CA1	TFM	TeX font metrics
CA0	Metafont	Metafont source
C99	Binder	Magpie Binder
C8B	JoyStick	Joystick
C8A	Palette+	PCATs Palette Plus
C89	Personal accounts	
C88	Prophile	Prophet accounts file
C88	AldeComm	Aldebaran (Evolution Trading)
C87	Personal Accounts	
C87	Invoice	Prophet invoice file
C87	EliteCom	!Elite commander saved game
C86	OCRData	
C85	JPEG	JPEG compressed picture
C84	Overlay	
C83	CKOver	
C82	Sequence	
C7F	Titler	
C7E	Database	
C7D	SID	Spreadsheet Interchange Data
C7B	PhoneNum	!Grapevine phone number database including terminal type & key definitions
C7A	LcadDRAW	!LinCAD
C76	Squashed	
C75	Sound	
C74	AlpMusic	
C74	Sound	ExSound
C73	RawMusic	ALPS
C70	LcadBLOCK	!LinCAD
C6D	Pinpoint?	Pinpoint
C6C	PinPoint	Pinpoint
C6B	NootBook	!Noot animation workbook
C6A	smArt	
C62	DeskEdit	DeskEdit printer options
C5A	Master	Modified Replay video and audio
C59	Log	Text file describing edited video and audio segments
C58	Ideas	
C57	Notate	Notate music
C56	VecFile	Vector
C55	DrumSeq	Drum sequence
C4E	GTi	
C4D	Battle	Dreadnoughts save game
C4B	CmprDraw	Compressed draw file (or DrwC)
C48	MIDITrck	Related to FD4?
C46	Tar	Unix tape archive
C46	MIDITrak?	MIDIJuke
C43	ChartOpt	ChartWell ChartOpt File
C3C	Shape	
C3B	FST	
C37	EurSheet	Eureka spreadsheet
C36	SFXSheet	
C35	CorlDraw	Corel Draw drawing
C33	CADfile	
C32	RTF	Rich Text Format
C2E	EurMacro	!Eureka
C2D	EurChart	!Eureka
C2A	IotaFilm	Video
C2A	SignGfx	
C29	HelpBook	
C29	DP tmplt	DataPower template
C28	Graph	DataPower graph
C27	Database	DataPower database
C26	ASheet	
C25	AWord	
C24	Architech	
C23	Plot	
C21	WX-Task	!WeatherDX
C1F	HoledOut	Holed Out golf game
C1E	FwkzCmd	Fireworkz commands
C1D	FwrkzTem	Fireworkz template
C1C	Wordz	Fireworkz (word processing)
C1B	KOPoint	
C1A	Subject	
C19	Stencil	Talking Pictures, The Spoken Word
C14	S-Data	!S-base database
C13	ANGLDATA	
C10	APAPos	
C0F	BookPos	
C0D	Molecule	!Modeller
C0C	SMacro	
C05	Ultra	Ultra Tracker music track
C04	ImpTrack	Impulse Tracker music track
C03	FastTrak	Fast Tracker music track
C02	ScrmTrak	Scream Tracker music track
C01	Central heating calculator	
C00	Rhapsody	Rhapsody score
BFF	Map	
BF8	MPEG	MPEG video
BF7	RIFF	General RIFF – chunked IBM PC multimedia format
BEE	Splosh	
BED	FontDisc	
BE9	SWorkSp	
BE8	PhotoCD	PhotoCD multiresolution picture
BE8	DAsPict	
BE1	Resultz	Fireworkz (spreadsheet)
BE0	Recordz	Fireworkz Pro database container
BDF	Firewrkz	Fireworkz document
BDA	Disc	Acorn Access+
BD9	DiscP	Acorn Access+
BD8	MacForks	Mac HFS forked file
BD7	HyprDict	Help document
BD6	Audiowrk	Sound sample
BD5	Envelope	
BD1	Rephorm	
BD0	PhotoBase	
BCF	TblMate	
BCB	Lexicon	
BC9	PrimeSlv	
BC5	ImpDoc	Impression single file document
BC4	PremGame	Premier Manager (Gremlin Graphics)
BC2	PresMgrIm	IBM OS2 Presentation Manager image
BBD	RevBAS	Use 1C7 for BBCBasic(86) and BBCBasic(80)
BBD	CheatData	
BBD	BBC Data	BBC Micro datafile
BBC	BBC ROM	BBC micro ROM
BB1	PhotoBase	
BB0	BibleNts	
BAF	MacDisc	Mac HFS disc image
BA6	Excel	Excel Spreadsheet
BA1	SNA	!Z80Em ZX Spectrum emulator snapshot
BA0	Z80	!Z80Em ZX Spectrum emulator snapshot
B9F	FLI	Video (also 301)
B9E	Verstile	Tiling drawfile
B9B	DBasic	
B9A	DBasLib	
B95	WimpBasic	WimpBasic design files
B8C	Split	Part of a multi-part file
B8B	TextEase	TextEase document
B8A	TxtEaseT	TextEase document template
B80	Slthzone	
B7D	TableCalc	
B7C	LifeForm	MacroLife Lifeform
B7B	Life	MacroLife Life plane
B78	MIDIWrks	MidiWorks score
B72	Compo	
B72	Gamma	Gamma correction data
B6F	WTModule	Wacky-Talky module
B6E	AddrList	Desktop Hacker address list
B6A	Illusion	Illusions Disk Magazine
B69	MMaker	Music Maker 1 music file
B64	C64_Info	C64 music info
B62	Gopher	Gopher command
B61	XBitMap	X window bitmap image
B60	PNG	Portable Network Graphics image
B5C	3DModel	!TopModel object
B59	Page	Bookmaker page file
B57	MyBook	Bookmaker book file
B56	BubStyle	Bubble Help style
B54	SOS	
B50	RGSCOpts	Choices for Picture Book 2 etc
B4F	Alphabet	Picture Book 2 Alphabet
B3D	PagesTmp	TextEase
B3C	Pages	TextEase pages
B3B	SpellBnk	!Spellbank user dictionary
B3A	SpellFrq	Words which have been looked up in !Spellbank
B31	FuzzySht?	FuzzySheet
B30	FuzzySht	FuzzySheet
B2F	WinMeta	WMF
B2E	CorelXch	Corel Exchange drawing
B2D	AdobeIll	Adobe Illustrator drawing
B2C	OS2Met	OS2 Metafile
B2B	CGMeta	CGM image
B2A	DaVinci	
B29	VRML	Virtual Reality Modeling Language
B28	URL	Uniform Resource Locator
B27	OvnPro	Ovation Pro document
B26	OVPStyle	Ovation Pro style sheet
B25	OVPDDL	Ovation Pro document description
B24	OVPScrpt	Ovation Pro script
B23	X-File	Directory image
B22	DFSImage	!ImageDFS Image filing system for 5.25 DFS Disc Images"
B21	TBAFSarc	TBA Archive
B1E	PsionPIC	Psion picture
B16	ProOrder	
B12	TTXpage	Teletext+ page
B11	TTXscrpt	Teletext+ script file
B0F	CasetDATA	
B09	ImageMap	
B02	Meta	MidiWorks Meta Event
AFF	DrawFile	
AFE	Mouse	Mouse event record
AFD	GCAL	GCAL source, (text)
AFC	GCODE	GCODE intermediate
AFB	PhonePad	
AFA	DtpStyle	Acorn DTP style sheet
AF9	DtpDoc	Acorn DTP document
AF8	1stWord+	First Word Plus document
AF7	HelpInfo	Interactive help
AF6	SimTrace	ASim trace
AF5	PostData	Econet mail setup
AF4	PostFile	Econet mail filed
AF3	PostBox	Econet mail postbox
AF2	PostTray	Econet mail in-tray
AF1	Music	!Maestro music
AF0	ARCWrite	ArcWriter
AEF	Sheet	
AEE	SheetWS	Schema macro
AED	SheetMac	Schema configure
AEC	DBFile	
AEB	DBReport	
AEA	DBChart	
AE9	Alarms	Alarm times
AE8	SaveGame	Saved game
AE7	ARMovie	Video
AE6	MSWord	Word processor document
AE4	Java	Java application
AE3	Director	Animation
AE1	IndexFile	
ADF	PDF	Portable Document Format
ADE	Safe	
ADC	DisCat	
ADB	New Font	Outline Font
ADA	Package	
AD8	PsiMBM	Psion Series 5
AD1	HQ-Inst	
ACF	vCard	Personal information including addresses
ACF	QTM	Music tracker. Does not seem to be used in latest QTM
ACE	Wavelength	
ACC	ISO-9660	CD image
ACA	LaTeX	LaTeX source (industry standard)
AC9	VF	TeX virtual font
AC4	H2Map	Heroes of Might and Magic 2 (R-Comp Interactive)
AC3	H2MapX	Heroes of Might and Magic 2 (R-Comp Interactive)
ABF	Cabinet	Archive
ABB	PlugIn	Cerilica Vantage Extension
ABA	CPIO	Archive
AB9	Monitor	Cerilica Monitor Calibration
AB7	PPD	PostScript Printer Definition
AAD	SVG	Scalable Vector Graphics drawing
AAC	DialUp	
AAB	DialAcc	
AAA	RiscOS3?	(Acorn)
AAA	Compdraw	
AA8	pls	SHOUTcast internet radio playlist
AA7	M3UFile	WinAmp mp3 URL list
AA6	TaskApp	Absolute in a TaskWindow
AA5	TskBasic	BASIC in a TaskWindow
AA0	MultiPlt	Graph data
A9F	GraphDrw	Graph data
A9E	ChartDrw	Chart data
A9D	KeyTops	Keyboard definition
A91	Zip	Zip archive
A8F	AC3Audio	AC3 raw audio
A8D	VOB	MPEG DVD video
A81	ODT	
A7F	MSExcelX	Microsoft Excel document
A7E	MSWordX	Microsoft Word document
A79	CUE	CDROM image CUE file
A78	FzDraw	Drawfile-packaged Fireworkz document
A77	PDChart	Drawfile-packaged PipeDream chart
A76	EPUB	Electronic publication
A70	SQLiteDB	SQLite database
A6F	AnqExp	Anquet Export Format
A66	WebP	
A65	JPEG2000	
A64	MP4	
A63	MKV	
A61	QOI	Quite OK Image
A06	Perl	Perl script (also 102)
A05	WHelp	
9FB	Basalt	BASIC program translated to run using Basalt
9F8	HD_BackJ	
9F0	Money	Never circulated
9EB	Index	No longer used
999	Spectrum	
907	Goop	Scores for Goop game
900	Universal	
8FF	DisasMap	Disassembler
81C	ICM	ICC Colour Profile
815	SKoords	
810	DrawLib	Draw Library
80C	StatPad	Uniform stationary pad
80B	VideoTex	Uniform Videotex
80A	DBForm	Uniform database form
809	DataBase	Uniform database
808	UniPS	Uniform PostScript
808	EPS	!EPSobject
807	GrphChrt	Uniform graphs & charts
806	PointEd	
806	Graphics	Uniform graphics
805	Drawing	Uniform drawing
804	Picture	Uniform picture
803	Spreadsh	Uniform spreadsheet
802	UnifText	Uniform text only
801	Wordproc	Uniform wordprocessor
800	Uniform	BBC Uniform File
800	Inlay	Tape inlay
7FF	WOFFfont	WOFF font
7FF	SUVec	!SU Vector file
7FF	SCRUtils	
7FF	Psion	Psion
7FF	FS Options	(Copy options)
7FF	Flare	
7FE	UUEncode	!U2
7FE	SUCoord	!SU Coordinate file
7FE	CMOS	Cmos_Edit saved CMOS RAM
7FD	SUNames	!SU cave survey names file
7FD	Menus	
7FD	Encoded	
7F6	PlotFile	
7F6	MultPlot	
7F5	PwrBase	
7F4	PwrBase	
7F3	GrphFile	
7F3	PwrBase	
7F2	PowerBase	PowerBase database
7F2	POSFile	!Betts POS file
7F2	KeyStrip	Key strip
7F1	SVYFile	!Betts SVY file
7F1	PwrBase	PowerBase valid
7F1	ChrtFile	ChartDraw
7F0	PwrBaseI	PowerBase index
7F0	CaveData	!Betts source data file
7EF	Morph	
7EF	MailFile	Mail browser
7DC	HelpFile	PowerBase help
7B7	ST Song	Soundtracker
7B4	IFF Samp	Same as FC2
7B3	ST Patt	Soundtracker
7AF	Pointer	
7A3	DCatFile	Disc catalogue
7A0	Timestep	TimeStep satellite image
787	SysEx	
77F	TTF Font	TrueType font
77F	HypHelp	
77E	CmpHHlp	
77D	HHBookM	
777	GraphDat	3-D Graph
777	GraphDat	Graph
770	MIDISysX	Raw MIDI System Exclusive data (first byte = &F0, last byte = &F7)
750	Diction	Articulate
745	WireWorld	
744	CoreWars	Core Wars
733	FracTrace	
725	extASM	Assembler source
721	HP11_Prog	
720	CardFile	CardIndex database
711	TaskList	StartTask task list
710	QTM	
710	!Packer	
70A	WeathrYr	WeatherYear
707	DDF	
703	Speculatr	
702	Spectrum	Spectrum
702	DissMdle	!Dissi Module file
701	Speculator	
701	ProTrack	!ProTrack Protracker music
701	KeyDefs	Function keys
701	Atoms	
701	Archway2	
700	Speculator	
700	Mole	
700	DissiCtr	!Dissi disassembler control file
700	ChessGame	Saved !Chess Game
700	Archway2	
700	Album	Album
6FF	MbrotPar	Mandel 4
6B4	TTFile	LTGame (never circulated)
6B3	JnyFile	LTGame (never circulated)
6B2	ArryFile	LTGame (never circulated)
6B1	DataFile	LTGame (never circulated)
6A6	WPGraphic	WordPerfect Graphic
6A5	TABFile	
6A5	ICO	Use 132 instead
6A5	CUR	Windows 3.0 cursor definition
6A4	HawkV9	Wild Vision Hawk V9 digitiser
6A3	FITS	Flexible Image Transport System image
6A2	ColoRIX	RIX Softworks image
6A1	RLE	Unix RLE image
6A0	MSX2	MSX-2 image
69F	ZVDA	Zeridajh video digitiser animation
69E	PBMPlus	Portable Bit Map Plus toolkit/portable pixmap
69D	Targa	Truevision Targa
69C	BMP	MS Windows bitmap
69B	Irlam	Irlam Instruments scanner image
69A	CadSoft	Prisma
699	MTV	MTV ray tracer picture
698	QRT	uick Ray Tracer picture
697	PCX	PCX picture
696	Pineappl	Pineapple digitised colour image
695	GIF	Graphics Interchange Format
694	MacPaint	Macintosh MacPaint bitmap
693	AmigaIFF	Amiga IFF (ILBM)
692	Img	Atari IMG image
691	Degas	Atari Degas image PI1,PI2,PI3,PC1,PC2,PC3
690	Clear	Clear image
68E	PackdDir	Packdir compressed archive
681	NDX	
680	DBaseIV	Database
666	ReadFont	
666	Read	CGM
666	AmazeLev	
664	Song	Music track
657	BreederCA	
656	?	Inspiration
655	?	Inspiration
654	?	Inspiration
653	?	Inspiration
652	?	Inspiration
651	?	Inspiration
639	XMFSprite	XMF painting sprite
635	Harmonica	
634	Effex	
633	RawSampl	
632	SgnSampl	
632	RIFFwave	SoundCon sound sample —> FB1
631	LogSampl	
604	NetWork	
601	CCIR601	720×288 or 720×243 YUV picture
600	Mandel	!MandlePlot compressed sprite
600	LoggaLog	
5FF	OnHand	On Hand
5FE	Flood?	Flood game saved levels
5F4	SparkScr	Spark command script
5F4	Fractal	
5C4	Sculptor?	
5C2	Sculptor?	
5C1	Sculptor?	
5C0	Sculptor	
560	DrghtsGame	
556	Archrome	
555	DiskBase	DiskBase
554	3View	
553	DrawLib	Vector object library
550	Musix	
54F	Delta	Delta film
515	AMFEdit16	
510	STracker	Music track
500	LQFont	LQ500 printer downloadable font
500	World	WorldScape Save Game
4FF	QGraphx	QGraphics
4DD	DAs_Pict	
4BD	PolySaw	
4AD	PhonePad	PhonePad
474	Sticky	!Sticky backdrop
450	Configs	
449	G_Proj	Project for Mark Jones’s Haskell dialect
448	G_Script	Script for Mark Jones’s Haskell dialect
444	STScript	
43B	Scroll_W	Archway2
439	Menu_W	Archway2
437	View_W	Archway2
435	Tools_W	Archway2
433	Dialog_W	Archway2
431	Form_W	Archway2
42F	DisplayW	Archway2
425	PDTSetup	
422	Fonts	Archway2
420	PrintSet	Printer settings
420	Custom	Archway2
419	Options	Copy/Wipe Filer options
418	VStrings	Archway2
416	Messages	Archway2
414	WClasses	Archway2
413	SpoolBuf	
412	Win_Met	
412	TelPhone	
412	IClasses	Archway2
411	TaskList	StartTask
411	EncPS	
410	OS2_Met	OS2 MetaFile
410	GIF	do not use —> 695
410	Code	Archway2
410	AlphaBase	
40E	TempestDTP	Tempest DTP
40E	Leader	
40E	CharSets	Archway2
40D	TempestDTP	Tempest DTP
40C	LinePats	Archway2
40C	TempestDTP	Tempest DTP
40B	Archway2	Archway2
40B	DTPFlow	Tempest DTP
40A	DTPStyle	Tempest DTP
40A	FillPats	Archway2
409	Backup	Backup3
409	DTPStylesht Tempest DTP	
408	AOutline	
408	DTPDocument Tempest DTP	
408	Pointers	Archway2
407	Choices	Archway2
407	Label	
406	Account	
406	Key	Archway2
405	MetaFile	Computer Graphics Metafile CGM/GMF
405	TempstDTP	Tempest DTP
404	GWMulti	GraphicWriter
403	GWVDU	GraphicWriter
402	GwMaster	GraphicWriter Menus
401	Accounts	
401	GWGraph	GraphicWriter
400	GuardMod	!Lifeguard screen-saver effects module
400	GwText	GraphicWriter
400	LifeGuard	
3FB	ArcFSArc	!ArcFS archive
3F8	FontMGR	
3F7	GamePos	
3F2	ArmSI	ARM speed indicator
3F1	MemDisc	
3ED	FreVocab	
3EB	Liberatr	Liberator talker memory dump
3E2	VistTune	Vistamusic Tune
3E0	HQ-Data	
3DC	ARJArc	ARJview
3D6	StrngHlp	StrongHelp help image
3C7	FEMSFile	
3C1	TwEffect	
3BF	ArcFS	!ArcFS archive
3B8	MLCS	
380	HBScript	Backup
371	RGB	RGB picture
371	RayShade	ditto
365	CocoTrak	
364	CocoSong	
360	SlideShow	SlideShow sequence
351	Sequence	
350	Squished	
345	FaxText	
333	Patience	
326	BackOpts	
325	BackData	
325	PDTSetup	
321	Menus	Menu designer
31B	DXen	Music track
309	OrdSheet	
301	XPixMap	
301	FLI	use B9F
300	TimeStep	Satellite image
2FF	SciGraph	
2F8	Z80 MOS	!Z80Tube MOS
2DF	D2Font	Draw2Font file
2BF	Tile_F	
2BE	Embrdr_F	
2BD	Stitch_F	
2BC	Patt_F	
2B8	WTpattrn	
2B4	Squeezed	
2B3	Squeezed	
2B2	Jigsaw	
2B0	Jigsaw	
297	Comprssd	
28A	Edit+	!Edit+
289	P Z88	Printed
288	N Z88	Normal Z88
280	Z80	!Z80Tube general Z80 snapshot
259	Server	Server side image map
258	Dancer	
234	Thoughts	
230	Ghostly	Haunted House (The Fourth Dimension)
226	CompFile	
225	VGGame	
224	VGStatus	
223	CompHole	
222	DateMarker	
214	WolfData	Wolfenstein 3-D data file
204	Typeface	Italicer Typeface
202	Song	Mascom2
201	Z80 COM	!Z80Tube .COM file
200	CAIFSArc	
200	CF Circ	
200	GraphSrc	
1FF	OldSong	Mascom2
1FF	TData	Tiger
1FF	Tiger	
1F1	Tiles	
1EC	Crypt	Crypt
1E4	SeasonSG	Saved game
1E3	GPX	Route data e.g. GPS
1DF	DiscCat	Disc catalogue data
1DF	Objects	
1DA	GPIOConf	GPIO configuration data
1D9	Syncjob	Synnchronisation details
1D8	PrintPDF	Bookmark and hotspot data for the PrintPDF application
1D5	vCalendr	Calendar and Diary information
1D5	?	
1CF	Conjugez	
1CF	FLAC	Free Lossless Audio Codec
1CA	CashBook	Filetype for the CashBook personal accounts package
1CA	HotKeys	
1C8	Symlink	Symbolic link
1C7	Basic8	Tokenised BBC BASIC in Z80/80×86/Windows format, also known as “Russell format”
1C6	32016	32016 code
1C5	PDP-11	PDP-11 code
1C1	JSW_Data	Jet Set Willy room, scenery, or animation
1C0	JSW_Game	Jet Set Willy Game file
1BC	Imagen	
1B9	TZX	Advanced Tape file format for use with spectrum emulators
1B8	VOC	Standard .VOC file format
1B7	ArmBob	Filetype for ArmBob files
1B5	DirSync	DirSync project file
1B1	PCTk	Generic PC music track
1B0	ScreamTk	ScreamTracker music track
1AF	FstTk	FastTracker2 music track
1AE	ImpulsTk	ImpulseTracker music track
1AD	AMPEG	Audio MPEG
1AD	Protector	
1AC	Project	
1AB	Address	Address book
1AA	CSSC	CSSC
1A8	Vorbis	Ogg Vorbis audio
1A1	Locate	Search definitions/results for Locate file-finder
1A0	TSAC	
199	Encode4	Encoder input
199	Encoded1	
198	Encode4	Encoder output
198	Encoded2	
18D	TaskLua	lua script or compiled object in a TaskWindow
18C	Lua	lua script or compiled object file
188	Flash	Macromedia flash file
187	awk	awk scrip
180	Copier180	
180	Mail	TransArc
17F	VideoLst	Video database
17C	Quetzal	
17B	Blorb	
172	Copier172	
16D	Organizer	Addresses, appointments and alarms
16C	DoomWad	Doom Iwad/Pwad
164	C64-Disc	C64 archive
164	Copier164	
160	Copier160	
15C	PsiAgnda	Psion Series 5/7 diary
15B	PsiData	Psion Series 5/7 database
15A	PsiOPL	Psion Series 5/7 program
159	PsiRecrd	Psion Series 5/7 audio
158	Psion	Psion Series 5/7
158	PlylstCD	
157	Playlist	
157	PsiSheet	Psion Series 5/7 spreadsheet
156	PsiWord	Psion Series 5/7 document
156	Squished	
155	FileList	Playlist
154	SR2000	
153	Cabri	!Cabriolet (dynamic geometry)
152	PolyData	Polyhedron definitions for !PolyDraw, !PolyNet
144	Copier144	
13D	TankSave	T.A.N.K.S. (Werewolf Software)
13C	JFPatch	Assembler patch file
139	3DScene	
138	MapprMap	!Mapper_O 2D map with overlays
132	ICO	Windows 3.0 icon collection
130	AntiGrav	
12B	RasMolSc	
12A	PDB	
129	Alchemy	
128	MOL	
128	Pifile	
127	MOPAC	
123	ALPS	(Alpine Software)
123	Creator	
122	Genetic	Genetic Algorithm data
120	ANSI	Ansi2Text
11D	TAP	Compressed 1-bit sound for emulators
11A	Z-Code	Infocom adventure game
118	Angband	Angband saved game file
116	DemoMolec	
113	FastSpr	
113	MoleAnim	
113	Proj Man	
112	MatlabFn	MatLab
112	Stasis	
112	Teletext	Teletext frame dump
111	MatlabSc	MatLab
111	MSDOS	!Spark/ArcFS RS DOS/PC PKARC compacted archive contents
111	RSDOS	RS DOS
110	RLaB	
10F	CLIcon	
10C	Keyboard	
10B	Symphony	
10A	SySample	
109	Glass	
109	Glazier	
108	DataVox	SysBeep sound file with internal chunk structure
107	OreDBase	Oregan Database – Archivist Pro
103	UniMode	VIDC regs and ModeVariables
102	Perl	Perl script (also A06)
102	SpellDict	
101	Calcsprd	Calc spreadsheet
101	Phone	
100	1stsheet	1st Statistics package
100	BackDrop	
0FF	Diss	
0FF	FineArt	
0FF	F-Paper	
0FF	Used	File marked as used
0FE	F-Pal	
0FE	Psion	Psion Organiser II file
0FD	F-Shapes	
0FD	Probase	
0FD	Z88Link archives	
0FC	Ray3d	
0FB	GEK Data	GEK games
0FB	RayLib	
0FA	RayMacro	
0F8	HelpFile	
0F8	MPEG	Video
0F5	EPSI	Encapsulated PostScript with Thumbnail
0ED	SprColor	Compact colour palette
0E3	SSSheet	
0DE	BackMenu	BackMenu
0DC	Keystrip	
0D8	GBSnap	Gameboy emulator snapshot
0D7	Gameboy	Gameboy emulator ROM-image
0D1	AddrList	
0CF	Options	
0CE	CDData	
0CD	CDTrack	
0CC	Card	
0CC	HellFile	
0CA	Calendar	Appointments
0C8	Pi	Anime picture
0C6	Pic	Anime picture
0C5	ECC Anim	Anime picture
0C4	MAG	Anime picture
0BC	PCRun	PC application startup
0BB	BBCRun	BBC application startup
0BB	MegaBoard	
0BA	TaskBAS	BASIC in a taskwindow (use AA5)
0B2	SoftList	
0AD	Split	Subsection of large file
0AC	DiscBox	
0AB	PPPTrack	
0AA	Indexer	
099	Puzzle	
084	PIC16C84	Mike Cook’s PIC Programmer
083	TauStyle	Tau
082	TauFile	Tau
07F	OTF Font	OpenType font
077	FTPc	
073	Sticky	
071	AVI	Audiovisual (See also FB2)
070	QuakePAK	Id Quake archive
06C	TADS	
069	BigMArt	BigMArt15
068	BigMArt	BigMArt15
068	Z-Code8	Infocom adventure game (version 8 Z-Code program)
067	Z-Code7	Infocom adventure game (version 7 Z-Code program)
066	Z-Code6	Infocom adventure game (version 6 Z-Code program)
065	XPS	XML Paper Specification document
065	Z-Code5	Infocom adventure game (version 5 Z-Code program)
064	C64	C64 executable
064	Z-Code4	Infocom adventure game (version 4 Z-Code program)
063	SIDSong	Playsid music track
063	Z-Code3	Infocom adventure game (version 3 Z-Code program)
062	Z-Code2	Infocom adventure game (version 2 Z-Code program)
061	Z-Code1	Infocom adventure game (version 1 Z-Code program)
050	3DPlanes	
050	Filer	
050	FracDef	
046	ColorMap	
045	FracPars	
044	Spray	
042	SimpleDTP	
042	Widget5	!Widget5 512×512 greyscale image
041	Widget4	!Widget5 256×256 greyscale image
041	Resource	
040	Wordsrch	
03C	WordSq	!WordSq creation and solving
03B	GEK Pack	GEK games
022	Niall II	
022	PGP	PGP signed file
021	compress	
017	PlanF	
016	PlnPg	
012	AIM	Archimedes Image Manager Configuration
012	AIM Cfg	
011	AIM	Archimedes Image Manager
011	HelpText	
010	AIM+	Archimedes Image Manager Plus Image header
010	AIMInfo	ditto
010	Mailabl	
00F	Pottery	
00F	UntypedS	Sound sample
00E	U2Enc	!U2 see also 7FE
00D	U2Dec	!U2 (obsolete)
00C	!Circuit	
00B	MegaBoard	
00B	!Armony	
00B	Matrix	Matrix tracker music track
00A	IcnStorm	
00A	Armony	
008	GolfDemo	
007	LCrypted	
006	ScotSave	
006	PathFile	
006	WildV12	WildVision 512×512×8b grey picture
005	ScottGame	
004	AOutline	ArcOutline
004	AIM	Archimedes Image Manager greyscale
003	ArmSI	Speed indicator
002	STracker	!STracker tune
002	SampDump	Vivaldi compressed sound sample file
002	PlayMod	
001	STracker	!STracker tune
001	Castles	Castles
000	MusDump	Vivaldi compressed music file
000	Crunched	Cruncher