A list of Mime Types

Following is a list of mime types of most used file types. I wish I had found this earlier

Extension	Mime Types	File Types
	Audio formats
.snd	audio/basic	Sun/NeXT audio format
.au	audio/basic	Sun/NeXT audio format
.aiff	audio/x-aiff	Apple audio format
.aifc	audio/x-aiff	Apple audio format
.aif	audio/x-aiff	Apple audio format
.wav	audio/x-wav	Windows WAV format
.mid	audio/mid	Windows MIDI format
.rmi	audio/mid	Windows MIDI format
	Image formats
.bmp	image/bmp	Windows bitmap format
.gif	image/gif	GIF
.ief	image/ief	Image Exchange format
.jpg	image/jpeg	JPEG
.jpe	image/jpeg	JPEG
.jpeg	image/jpeg	JPEG
.tif	image/tiff	TIFF
.tiff	image/tiff	TIFF
.ras	image/cmu-raster	CMU raster format
.png	image/png	PNG
.pnm	image/x-portable-anymap	PBM Anymap format
.pbm	image/x-portable-bitmap	PBM Pixmap format
.pgm	image/x-portable-graymap	PBM Graymap format
.ppm	image/x-portable-pixmap	PBM Pixmap format
.rgb	image/x-rgb	RGB format
.xbm	image/x-xbitmap	7bit-X bitmap
.xpm	image/x-xpixmap	X pixmap format
.xwd	image/x-xwindowdump	X window dump (xwd)
.cmx	image/x-cmx	Corel CMX format
.ico	image/x-icon	X-Icon format
	Video formats
.mpg	video/mpeg	MPEG
.mpe	video/mpeg	MPEG
.mpeg	video/mpeg	MPEG
.qt	video/quicktime	QuickTime
.mov	video/quicktime	QuickTime
.avi	video/avi	MS Video for Windows
.movie	video/x-sgi-movie	SGImovieplayer
.asf	video/x-ms-asf	MS Active streaming format
.asx	video/x-ms-asf	MS Active streaming format
.vdo	video/x-vdolive	VDOLive script
	Message formats
.eml	message/rfc822	Outlook Mail Message
.mht	message/rfc822	Mail Message
.mhtml	message/rfc822	Mail Message
	Text formats
.html	text/html	8bit-HTML
.htm	text/html	8bit-HTML variant
.htmls	text/html	8bit-HTML w/ Server-side includes
.shtml	text/html	8bit-HTML w/ Server-side includes
.css	text/css	8bit-Cascading Style Sheet
.xml	text/xml	8bit-XML
.htc	text/x-component	8bit-HTML component
.c	text/plain	7bit-C source
.h	text/plain	7bit-C headers
.cc	text/plain	7bit-C++ source
.cpp	text/plain	7bit-C++ source
.cxx	text/plain	7bit-C++ source
.hh	text/plain	7bit-C++ headers
.hxx	text/plain	7bit-C++ headers
.m	text/plain	7bit-Objective-C source
.f90	text/plain	7bit-Fortran 90 source
.txt	text/plain	7bit-Plain text
.rtx	text/richtext	7bit-MIME Richtext format
.tsv	text/tab-separated-values	7bit-Tab-separated values
.etx	text/x-setext	7bit-Structure Enhanced Text
.for	text/plain	7bit-Fortran
.mar	text/plain	7bit-MACRO
.log	text/plain	7bit-logfiles9
.com	text/plain	7bit-scripts
.sdml	text/plain	7bit-SDML
.list	text/plain	7bit-listfiles
.lst	text/plain	7bit-listfiles
.def	text/plain	7bit-definition files
.conf	text/plain	7bit-definition files
.cnf	text/plain	7bit-definition files
.vcf	text/x-vcard	7bit-VCard
.manifest	text/cache-manifest	7bit-manifest file
	Compressed file formats
.gz	application/x-gzip	GNU Zip
.zip	application/x-zip	PKZIP
.tar	application/x-tar	4.3BSD tar
.ustar	application/x-ustar	POSIX tar
	Lotus application formats
.123	application/vnd.lotus-1-2-3	Lotus 1-2-3 97
.wk4	application/vnd.lotus-1-2-3	Lotus 1-2-3 97
.wk3	application/vnd.lotus-1-2-3	Lotus 1-2-3 97
.wk1	application/vnd.lotus-1-2-3	Lotus 1-2-3 97
.wks	application/vnd.lotus-1-2-3	Lotus 1-2-3 97
.scm	application/vnd.lotus-screencam	Lotus ScreenCam Movie
.lwp	application/vnd.lotus-wordpro	Lotus Freelance 97
.sam	application/vnd.lotus-wordpro	Lotus Freelance 97
.prz	application/vnd.lotus-freelance	Lotus Freelance 97
.pre	application/vnd.lotus-freelance	Lotus Freelance 97
.imp	application/vnd.lotus-improv	Lotus Improv
.odt	application/vnd.oasis.opendocument.text	Lotus Symphony OpenDocument Text
.odp	application/vnd.oasis.opendocument.presentation	Lotus Symphony OpenDocument Presentation
.ods	application/vnd.oasis.opendocument.spreadsheet	Lotus Symphony Opendocument Spreadsheet
	Microsoft application formats
.doc	application/msword	Microsoft Word
.dot	application/msword	Microsoft Word
.docx	application/vnd.openxmlformats-officedocument.wordprocessingml.document
.dotx	application/vnd.openxmlformats-officedocument.wordprocessingml.template
.docm	application/vnd.ms-word.document.macroEnabled.12
.dotm	application/vnd.ms-word.template.macroEnabled.12
.pub	application/x-mspublisher	Microsoft Publisher
.mpp	application/vnd.ms-project	Microsoft Project
.pot	application/vnd.ms-powerpoint	Microsoft Powerpoint
.ppt	application/vnd.ms-powerpoint	Microsoft Powerpoint
.pps	application/vnd.ms-powerpoint	Microsoft Powerpoint
.ppa	application/vnd.ms-powerpoint
.pptx	application/vnd.openxmlformats-officedocument.presentationml.presentation
.potx	application/vnd.openxmlformats-officedocument.presentationml.template
.ppsx	application/vnd.openxmlformats-officedocument.presentationml.slideshow
.ppam	application/vnd.ms-powerpoint.addin.macroEnabled.12
.pptm	application/vnd.ms-powerpoint.presentation.macroEnabled.12
.potm	application/vnd.ms-powerpoint.presentation.macroEnabled.12
.ppsm	application/vnd.ms-powerpoint.slideshow.macroEnabled.12
.scd	application/vnd.ms-schedule	Microsoft Schedule
.wcm	application/vnd.ms-works	Microsoft Works
.wdb	application/vnd.ms-works	Microsoft Works
.wps	application/vnd.ms-works	Microsoft Works
.wri	application/x-mswrite	Microsoft Write
.xla	application/vnd.ms-excel	Microsoft Excel
.xlc	application/vnd.ms-excel	Microsoft Excel
.xlm	application/vnd.ms-excel	Microsoft Excel
.xls	application/vnd.ms-excel	Microsoft Excel
.xlt	application/vnd.ms-excel	Microsoft Excel
.xlw	application/vnd.ms-excel	Microsoft Excel
.xlsx	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.xltx	application/vnd.openxmlformats-officedocument.spreadsheetml.template
.xlsm	application/vnd.ms-excel.sheet.macroEnabled.12
.xltm	application/vnd.ms-excel.template.macroEnabled.12
.xlam	application/vnd.ms-excel.addin.macroEnabled.12
.xlsb	application/vnd.ms-excel.sheet.binary.macroEnabled.12
	Macromedia formats
.dcr	application/x-director	Shockwave for Director
.dir	application/x-director	Shockwave for Director
.dxr	application/x-director	Shockwave for Director
.swf	application/x-shockwave-flash	Shockwave Flash
.spl	application/futuresplash	Future Splash Animator
	RealAudio formats
.rm	application/vnd.rn-realmedia	RealPlayer
.rpm	audio/x-pn-realaudio-plugin	RealAudio plug-in
.ra	audio/x-pn-realaudio	RealPlayer
.ram	audio/x-pn-realaudio	RealPlayer
.rv	video/vnd.rn-realvideo	RealPlayer
	VRML formats
.wrl	x-world/x-vrml	VRML
.wrz	x-world/x-vrml	VRML
.xaf	x-world/x-vrml	VRML
.xof	x-world/x-vrml	VRML
	Other application formats
.cdf	application/x-cdf	Channel file
.323	application/h323	H.323 Internet Telephony
.js	application/x-javascript	JavaScript
.class	application/octet-stream	Java class file
.bin	application/octet-stream	Uninterpreted binary
.wp5	application/wordperfect5.1	WordPerfect
.oda	application/oda	Open Document Architecture
.pdf	application/pdf	Adobe Acrobat
.ai	application/postscript	8bit-Adobe Illustrator
.eps	application/postscript	8bit-Encapulated PostScript
.ps	application/postscript	8bit-PostScript
.rtf	application/x-rtf	7bit-RTF
.csh	application/x-csh	7bit-C-shell script
.dvi	application/x-dvi	TeX DVI
.hdf	application/x-hdf	NCSA HDF data file
.latex	application/x-latex	8bit-LaTeX source
.nc	application/x-netcdf	Unidata netCDF data
.sh	application/x-sh	7bit-Shell-script
.tcl	application/x-tcl	7bit-TCL-script
.tex	application/x-tex	8bit-TeX source
.texi	application/x-texinfo	7bit-Texinfo
.texinfo	application/x-texinfo	7bit-Texinfo
.t	application/x-troff	7bit-Troff
.roff	application/x-troff	7bit-Troff
.tr	application/x-troff	7bit-Troff
.man	application/x-troff-man	7bit-Troff with man macros
.me	application/x-troff-me	7bit-Troff with me macros
.ms	application/x-troff-ms	7bit-Troff with ms macros
.src	application/x-wais-source7bit	WAIS source
.bcpio	application/x-bcpio	Old binary CPIO
.cpio	application/x-cpio	POSIX CPIO
.gtar	application/x-gtar	Gnu tar
.shar	application/x-shar	8bit-Shell archive
.sv4cpio	application/x-sv4cpio	SVR4 CPIO
.sv4crc	application/x-sv4crc	SVR4 CPIO with CRC
.ice	x-conference/x-cooltalk	Cooltalk
.rrf	application/x-InstallFromWeb	InstallFromTheWeb
.wis	application/x-InstallFromWeb	InstallFromTheWeb plug-in
.jnlp	application/x-java-jnlp-file	Java Web Start
.crl	application/pkix-crl	Certificate Revocation List

Hope this helps :)