The extension is that part of the filename that follows the last dot or period, so that filename "index.html" has the extension of "html".
For more than you ever wanted to know about MIME, see this reference.
If you need a MIME Type that does not show up below, send cash and/or an Email to webmaster@turnpike.net
Content Type Extensions Applications application/EDI-Consent application/EDI-X12 application/EDIFACT application/activemessage application/andrew-inset application/applefile application/atomicmail application/batch-smtp application/cals-1840 application/commonground application/cybercash application/dca-rft application/dec-dx application/eshop application/futuresplash spl application/http application/hyperstudio application/iges application/iges application/index application/index.cmd application/index.obj application/index.response application/index.vnd application/iotp application/ipp application/macwriteii application/mac-binhex40 hqx application/mac-compactpro cpt application/marc application/mathematica application/mathematica-old application/msword doc application/news-message-id application/news-transmission application/ocsp-request application/ocsp-response application/octet-stream bin dms lha lzh exe class application/oda oda application/pdf pdf application/pgp-encrypted application/pgp-keys application/pgp-signature application/pkcs10 application/pkcs7-mime application/pkcs7-signature application/pkix-cert application/pkix-crl application/pkixcmp application/postscript ai eps ps application/powerpoint ppt application/remote-printing application/rtf rtf application/slate application/vnd.3M.Post-it-Notes application/vnd.FloGraphIt application/vnd.accpac.simply.aso application/vnd.accpac.simply.imp application/vnd.acucobol application/vnd.anser-web-certificate-issue-initiation application/vnd.anser-web-funds-transfer-initiation application/vnd.audiograph application/vnd.businessobjects application/vnd.bmi application/vnd.canon-cpdl application/vnd.canon-lips application/vnd.claymore application/vnd.commerce-battelle application/vnd.commonspace application/vnd.comsocaller application/vnd.cosmocaller application/vnd.cups-postscript application/vnd.cups-raster application/vnd.cups-raw application/vnd.ctc-posml application/vnd.cybank application/vnd.dna application/vnd.dpgraph application/vnd.dxr application/vnd.ecdis-update application/vnd.ecowin.chart application/vnd.ecowin.filerequest application/vnd.ecowin.fileupdate application/vnd.ecowin.series application/vnd.ecowin.seriesrequest application/vnd.ecowin.seriesupdate application/vnd.enliven application/vnd.epson.msf application/vnd.epson.quickanime application/vnd.epson.salt application/vnd.epson.ssf application/vnd.ericsson.quickcall application/vnd.eudora.data application/vnd.fdf application/vnd.ffsns application/vnd.framemaker application/vnd.fujitsu.oasys application/vnd.fujitsu.oasys2 application/vnd.fujitsu.oasys3 application/vnd.fujitsu.oasysgp application/vnd.fujitsu.oasysprs application/vnd.fujixerox.ddd application/vnd.fujixerox.docuworks application/vnd.fujixerox.docuworks.binder application/vnd.fut-misnet application/vnd.grafeq application/vnd.groove-account application/vnd.groove-identity-message application/vnd.groove-injector application/vnd.groove-tool-message application/vnd.groove-tool-template application/vnd.hp-HPGL application/vnd.hp-PCL application/vnd.hp-PCLXL application/vnd.hp-hpid application/vnd.hp-hps application/vnd.hzn-3d-crossword application/vnd.ibm.MiniPay application/vnd.ibm.modcap application/vnd.intercon.formnet application/vnd.intertrust.digibox application/vnd.intertrust.nncp application/vnd.intu.qbo application/vnd.intu.qfx application/vnd.is-xpr application/vnd.japannet-directory-service application/vnd.japannet-jpnstore-wakeup application/vnd.japannet-payment-wakeup application/vnd.japannet-registration application/vnd.japannet-registration-wakeup application/vnd.japannet-setstore-wakeup application/vnd.japannet-verification application/vnd.japannet-verification-wakeup application/vnd.koan application/vnd.lotus-1-2-3 application/vnd.lotus-approach application/vnd.lotus-freelance application/vnd.lotus-notes application/vnd.lotus-organizer application/vnd.lotus-screencam application/vnd.lotus-wordpro application/vnd.mediastation.cdkey application/vnd.meridian-slingshot application/vnd.mif mif application/vnd.minisoft-hp3000-save application/vnd.mitsubishi.misty-guard.trustweb application/vnd.mobius.daf application/vnd.mobius.dis application/vnd.mobius.msl application/vnd.mobius.plc application/vnd.mobius.txf application/vnd.motorola.flexsuite application/vnd.motorola.flexsuite.adsi application/vnd.motorola.flexsuite.fis application/vnd.motorola.flexsuite.gotap application/vnd.motorola.flexsuite.kmr application/vnd.motorola.flexsuite.ttc application/vnd.motorola.flexsuite.wem application/vnd.ms-artgalry application/vnd.ms-asf application/vnd.ms-excel xls application/vnd.ms-powerpoint ppt application/vnd.ms-project application/vnd.ms-tnef application/vnd.ms-works application/vnd.music-niff application/vnd.musician application/vnd.netfpx application/vnd.noblenet-directory application/vnd.noblenet-sealer application/vnd.noblenet-web application/vnd.novadigm.EDM application/vnd.novadigm.EDX application/vnd.novadigm.EXT application/vnd.osa.netdeploy application/vnd.pg.format application/vnd.pg.osasli application/vnd.powerbuilder6 application/vnd.powerbuilder6-s application/vnd.powerbuilder7 application/vnd.powerbuilder7-s application/vnd.powerbuilder75 application/vnd.powerbuilder75-s application/vnd.previewsystems.box application/vnd.publishare-delta-tree application/vnd.rapid application/vnd.s3sms application/vnd.seemail application/vnd.shana.informed.formdata application/vnd.shana.informed.formtemplate application/vnd.shana.informed.interchange application/vnd.shana.informed.package application/vnd.street-stream application/vnd.svd application/vnd.swiftview-ics application/vnd.triscape.mxs application/vnd.trueapp application/vnd.truedoc application/vnd.ufdl application/vnd.uplanet.alert application/vnd.uplanet.alert-wbxml application/vnd.uplanet.bearer-choi-wbxml application/vnd.uplanet.bearer-choice application/vnd.uplanet.cacheop application/vnd.uplanet.cacheop-wbxml application/vnd.uplanet.channel application/vnd.uplanet.channel-wbxml application/vnd.uplanet.list application/vnd.uplanet.list-wbxml application/vnd.uplanet.listcmd application/vnd.uplanet.listcmd-wbxml application/vnd.uplanet.signal application/vnd.vcx application/vnd.vectorworks application/vnd.visio application/vnd.wap.sic application/vnd.wap.slc application/vnd.wap.wbxml wbxml application/vnd.wap.wmlc wmlc application/vnd.wap.wmlscriptc wmlsc application/vnd.webturbo application/vnd.wrq-hp3000-labelled application/vnd.wt.stf application/vnd.xara application/vnd.xfdl application/vnd.yellowriver-custom-menu application/wita application/wordperfect5.1 application/x-authorware-map aam application/x-authorware-seg aas application/x-authorware-bin aab application/x-bcpio bcpio application/x-cdlink vcd application/x-compress Z application/x-cpio cpio application/x-csh csh application/x-director dir dcr dxr application/x-dvi dvi application/x-freehand fh4 fh7 fh5 fhc fh application/x-gtar gtar application/x-gzip gz application/x-hdf hdf application/x-httpd-cgi cgi application/x-koan skp skd skt skm application/x-latex latex application/x-mif mif application/x-netcdf nc cdf application/x-sh sh application/x-shar shar application/x-shockwave-flash swf application/x-sprite spr application/x-stuffit sit application/x-sv4cpio sv4cpio application/x-sv4crc sv4crc application/x-tar tar application/x-tcl tcl application/x-tex tex application/x-texinfo texinfo texi application/x-troff t tr roff application/x-troff-man man application/x-troff-me me application/x-troff-ms ms application/x-ustar ustar application/x-wais-source src application/x-wix wxn application/zip zip Audio audio/basic au snd audio/mpeg mpga mp2 audio/x-aiff aif aiff aifc audio/x-midi mid midi rmf audio/x-pn-realaudio ram ra audio/x-pn-realaudio-plugin rpm audio/x-wav wav Chemical chemical/x-pdb pdb xyz Image image/fif fif image/gif gif image/ief ief image/jpeg jpeg jpg jpe image/png png image/tiff tiff tif image/vasa mcf image/vnd.cns.inf2 image/vnd.dwg image/vnd.dxf image/vnd.fastbidsheet image/vnd.fpx image/vnd.fujixerox.edmics-mmr image/vnd.fujixerox.edmics-rlc image/vnd.mix image/vnd.net-fpx image/vnd.svf image/vnd.wap.wbmp wbmp image/vnd.xiff image/x-bmp bmp image/x-ico ico image/x-cmu-raster ras image/x-portable-anymap pnm image/x-portable-bitmap pbm image/x-portable-graymap pgm image/x-portable-pixmap ppm image/x-rgb rgb image/x-xbitmap xbm image/x-xpixmap xpm image/x-xwindowdump xwd message/external-body message/news message/partial message/rfc822 multipart/alternative multipart/appledouble multipart/digest multipart/mixed multipart/parallel Text text/html html htm text/plain txt text/richtext rtx text/tab-separated-values tsv text/vnd.abc text/vnd.flatland.3dml text/vnd.fly text/vnd.fmi.flexstor text/vnd.in3d.3dml text/vnd.in3d.spot text/vnd.latex-z text/vnd.motorola.reflex text/vnd.ms-mediapackage text/vnd.wap.sl text/vnd.wap.wml wml text/vnd.wap.wmlscript wmls text/x-setext etx text/x-sgml sgml sgm Video video/mpeg mpeg mpg mpe video/quicktime qt mov video/x-msvideo avi video/x-sgi-movie movie video/vnd.vivo viv Conference x-conference/x-cooltalk ice Virtual Reality x-world/x-vrml wrl vrml