Description of Data Content

Typical Filename Extensions

MIME type/subtype

Text and Text-Related Types

HTML text data (RFC 1866)

html htm

text/html

Plain text: documents; program listings

txt c c++ pl cc h

text/plain

Richtext (obsolete - replaced by text/enriched)

text/richtext

Structure enhanced text

(etx?)

text/x-setext

Enriched text markup (RFC 1896)

text/enriched

Tab-separated values (tabular)

(tsv?)

text/tab-separated-values

SGML documents (RFC 1874)

text/sgml

Speech synthesis data (MVP Solutions)

talk

text/x-speech

Document Stylesheet Types

Cascading Stylesheets

css

text/css

DSSSL-online stylesheets

application/dsssl (proposed)

Image Types

GIF

gif

image/gif

X-Windows bitmap (b/w)

xbm

image/x-xbitmap

X-Windows pixelmap (8-bit color)

xpm

image/x-xpixmap

Portable Network Graphics

png

image/x-png

Image Exchange Format (RFC 1314)

ief

image/ief

JPEG

jpeg jpg jpe

image/jpeg

TIFF

tiff tif

image/tiff

RGB

rgb

image/rgb

image/x-rgb

Group III Fax (RFC 1494)

g3f

image/g3fax

X Windowdump format

xwd

image/x-xwindowdump

Macintosh PICT format

pict

image/x-pict

PPM (UNIX PPM package)

ppm

image/x-portable-pixmap

PGM (UNIX PPM package)

pgm

image/x-portable-graymap

PBM (UNIX PPM package)

pbm

image/x-portable-bitmap

PNM (UNIX PPM package)

pnm

image/x-portable-anymap

Microsoft Windows bitmap

bmp

image/x-ms-bmp

CMU raster

ras

image/x-cmu-raster

Kodak Photo-CD

pcd

image/x-photo-cd

Computer Graphics Metafile

cgm

image/cgm

North Am. Presentation Layer Protocol

image/naplps

CALS Type 1 or 2

mil cal

image/x-cals

Fractal Image Format (Iterated Systems)

fif

image/fif

QuickSilver active image (Micrografx)

dsf

image/x-mgx-dsf

CMX vector image (Corel)

cmx

image/x-cmx

Wavelet-compressed (Summus)

wi

image/wavelet

AutoCad Drawing (SoftSource)

dwg

image/vnd.dwg

image/x-dwg

AutoCad DXF file (SoftSource)

dxf

image/vnd.dxf

image/x-dxf

Simple Vector Format (SoftSource)

svf

image/vnd.svf

also vector/x-svf

Audio/Voice/Music Related Types

"basic"audio - 8-bit u-law PCM

au snd

audio/basic

Macintosh audio format (AIpple)

aif aiff aifc

audio/x-aiff

Microsoft audio

wav

audio/x-wav

MPEG audio

mpa abs mpega

audio/x-mpeg

MPEG-2 audio

mp2a mpa2

audio/x-mpeg-2

compressed speech (Echo Speech Corp.)

es

audio/echospeech

Toolvox speech audio (Voxware)

vox

audio/voxware

RapidTransit compressed audio (Fast Man)

lcc

application/fastman

Realaudio (Progressive Networks)

ra ram

application/x-pn-realaudio

NIFF music notation data format

application/vnd.music-niff

MIDI music data

mmid

x-music/x-midi

Koan music data (SSeyo)

skp

application/vnd.koan

application/x-koan

Speech synthesis data (MVP Solutions)

talk

text/x-speech

Video Types

MPEG video

mpeg mpg mpe

video/mpeg

MPEG-2 video

mpv2 mp2v

video/mpeg-2

Macintosh Quicktime

qt mov

video/quicktime

Microsoft video

avi

video/x-msvideo

SGI Movie format

movie

video/x-sgi-movie

VDOlive streaming video (VDOnet)

vdo

video/vdo

Vivo streaming video (Vivo software)

viv

video/vnd.vivo

video/vivo

Special HTTP/Web Application Types

Proxy autoconfiguration (Netscape browsers)

pac

application/x-ns-proxy-autoconfig

See Chapter 6

application/x-www-form-urlencoded

See Chapter 9

application/x-www-local-exec

See Chapter 9 (Netscape extension)

multipart/x-mixed-replace

See Chapter 9 and Appendix B

multipart/form-data

Netscape Cooltalk chat data (Netscape)

ice

x-conference/x-cooltalk

Interactive chat (Ichat)

application/x-chat

Application Types

Text-Related

PostScript

ai eps ps

application/postscript

Microsoft Rich Text Format

rtf

application/rtf

Adobe Acrobat PDF

pdf

application/pdf

application/x-pdf

Maker Interchange Format (FrameMaker)

mif

application/vnd.mif

application/x-mif

Troff document

t tr roff

application/x-troff

Troff document with MAN macros

man

application/x-troff-man

Troff document with ME macros

me

application/x-troff-me

Troff document with MS macros

ms

application/x-troff-ms

LaTeX document

latex

application/x-latex

Tex/LateX document

tex

application/x-tex

GNU TexInfo document

texinfo texi

application/x-texinfo

TeX dvi format

dvi

application/x-dvi

MacWrite document

??

application/macwriteii

MS word document

??

application/msword

WordPerfect 5.1 document

??

application/wordperfect5.1

SGML application (RFC 1874)

application/sgml

Office Document Architecture

oda

application/oda

Envoy Document

evy

application/envoy

Wang Info. Tranfer Format (Wang)

application/wita

DEC Document Transfer Format (DEC)

application/dec-dx

IBM Document Content Architecture (IBM)

application/dca-rft

CommonGround Digital Paper (No Hands Software)

application/commonground

FrameMaker Documents (Frame)

doc fm frm frame

application/vnd.framemaker

application/x-framemaker

Remote printing at arbitrary printers (RFC 1486)

application/remote-printing

Archive/Compressed Archives

Gnu tar format

gtar

application/x-gtar

4.3BSD tar format

tar

application/x-tar

POSIX tar format

ustar

application/x-ustar

Old CPIO format

bcpio

application/x-bcpio

POSIX CPIO format

cpio

application/x-cpio

UNIX sh shell archive

shar

application/x-shar

DOS/PC - Pkzipped archive

zip

application/zip

Macintosh Binhexed archive

hqx

application/mac-binhex40

Macintosh Stuffit Archive

sit sea

application/x-stuffit

Fractal Image Format

fif

application/fractals

Binary, UUencoded

bin uu

application/octet-stream

PC executable

exe

application/octet-stream

WAIS "sources"

src wsrc

application/x-wais-source

NCSA HDF data format

hdf

application/hdf

Downloadable Program/Scripts

Javascript program

js ls mocha

text/javascript

application/x-javascript

VBScript program

text/vbscript

UNIX bourne shell program

sh

application/x-sh

UNIX c-shell program

csh

application/x-csh

Perl program

pl

application/x-perl

Tcl (Tool Control Language) program

tcl

application/x-tcl

Atomicmail program scripts (obsolete)

application/atomicmail

Slate documents - executable enclosures (BBN)

application/slate

Undefined binary data (often executable progs)

application/octet-stream

RISC OS Executable programs (ANT Limited)

application/riscos

Animation/Multimedia

Andrew Toolkit inset

application/andrew-inset

FutureSplash vector animation (FutureWave)

spl

application/futuresplash

mBED multimedia data (mBED)

mbd

application/mbedlet

Macromedia Shockwave (Macromedia)

application/x-director

Sizzler real-time video/animation

application/x-sprite

PowerMedia multimedia (RadMedia)

rad

application/x-rad-powermedia

Presentation

PowerPoint presentation (Microsoft)

ppz

application/mspowerpoint

PointPlus presentation data (Net Scene)

css

application/x-pointplus

ASAP WordPower (Software Publishing Corp.)

asp

application/x-asap

Astound Web Player multimedia data (GoldDisk)

asn

application/astound

Special Embedded Object

OLE script e.g. Visual Basic (Ncompass)

axs

application/x-olescript

OLE Object (Microsoft/NCompass)

ods

application/x-oleobject

OpenScape OLE/OCX objects (Business@Web)

opp

x-form/x-openscape

Visual Basic objects (Amara)

wba

application/x-webbasic

Specialized data entry forms (Alpha Software)

frm

application/x-alpha-form

client-server objects (Wayfarer Communications)

wfx

x-script/x-wfxclient

General Applications

Undefined binary data (often executable progs)

application/octet-stream

CALS (U.S. D.O.D data format - RFC 1895)

application/cals-1840

Pointcast news data (Pointcast)

pcn

application/x-pcn

Excel spreadsheet (Microsoft)

application/vnd.ms-excel

application/x-msexcel

application/ms-excel

PowerPoint (Microsoft)

ppt

application/vnd.ms-powerpoint

application/ms-powerpoint

Microsoft Project (Microsoft)

application/vnd.ms-project

Works data (Microsoft)

application/vnd.ms-works

MAPI data (Microsoft)

application/vnd.ms-tnef

Artgallery data (Microsoft)

application/vnd.artgalry

SourceView document (Dataware Electronics)

svd

application/vnd.svd

Truedoc (Bitstream)

application/vnd.truedoc

Net Install - software install (20/20 Software)

ins

application/x-net-install

Carbon Copy - remote control/access (Microcom)

ccv

application/ccv

Spreadsheets (Visual Components)

vts

workbook/formulaone

Cybercash digital money (Cybercash)

application/cybercash

Format for sending generic Macintosh files

application/applefile

Active message -- connect to active mail app.

application/activemessage

X.400 mail message body part (RFC 1494)

application/x400-bp

USENET news message id (RFC 1036)

application/news-message-id

USENET news message (RFC 1036)

application/news-transmission

Multipart Types (mostly email)

Messages with multiple parts

multipart/mixed

Messages with multiple, alternative parts

multipart/alternative

Message with multiple, related parts

multipart/related

Multiple parts are digests

multipart/digest

For reporting of email status (admin.)

multipart/report

Order of parts does not matter

multipart/parallel

Macintosh file data

multipart/appledouble

Aggregate messages; descriptor as header

multipart/header-set

Container for voice-mail

multipart/voice-message

HTML FORM data (see Ch. 9 and App. B)

multipart/form-data

Infinite multiparts - See Chapter 9 (Netscape)

multipart/x-mixed-replace

Message Types (mostly email)

MIME message

message/rfc822

Partial message

message/partial

Message containing external references

message/external-body

Message containing USENET news

message/news

HTTP message

message/http

2D/3D Data/Virtual Reality Types

VRML data file

wrl vrml

x-world/x-vrml (changing to model/vrml)

WIRL - VRML data (VREAM)

vrw

x-world/x-vream

Play3D 3d scene data (Play3D)

p3d

application/x-p3d

Viscape Interactive 3d world data (Superscape)

svr

x-world/x-svr

WebActive 3d data (Plastic Thought)

wvr

x-world/x-wvr

QuickDraw3D scene data (Apple)

3dmf

x-world/x-3dmf

Scientific/Math/CAD Types

Chemical types -- to communicate information about chemical models

chemical/* (several subtypes)

Mathematica notebook

ma

application/mathematica

Computational meshes for numerical simulations

msh

x-model/x-mesh(evolving to model/mesh)

Vis5D 5-dimensional data

v5d

application/vis5d

IGES models -- CAD/CAM (CGM) data

igs

application/iges(evolving to model/iges?)

Autocad WHIP vector drawings

dwf

drawing/x-dwf

Largely Platform-Specific Types

Silicon Graphics Specific Types

Showcase Presentations

showcase slides sc sho show

application/x-showcase

Insight Manual pages

ins insight

application/x-insight

Iris Annotator data

ano

application/x-annotator

Directory Viewer

dir

application/x-dirview

Software License

lic

application/x-enterlicense

Fax manager file

faxmgr

application/x-fax-manager

Fax job data file

faxmgrjob

application/x-fax-manager-job

IconBook data

icnbk

application/x-iconbook

?

wb

application/x-inpview

Installable software in 'inst' format

inst

application/x-install

Mail folder

mail

application/x-mailfolder

?

pp ppages

application/x-ppages

Data for printer (via lpr)

sgi-lpr

application/x-sgi-lpr

Software in 'tardist' format

tardist

application/x-tardist

Software in compressed 'tardist' format

ztardist

application/x-ztardist

WingZ spreadsheet

wkz

application/x-wingz

Open Inventor 3-D scenes

iv

graphics/x-inventor