Mime types to file extensions. JSON format. Converted from https://gist.github.com/nimasdj/801b0b1a50112ea6a997 (version from 16 November 2015)

mimetype_to_ext.json

{
    "aapplication/octet-stream": [
        "saveme"
    ], 
    "applicaiton/x-bytecode.python": [
        "pyc"
    ], 
    "application/acad": [
        "dwg"
    ], 
    "application/andrew-inset": [
        "ez"
    ], 
    "application/applixware": [
        "aw"
    ], 
    "application/arj": [
        "arj"
    ], 
    "application/atom+xml": [
        "atom"
    ], 
    "application/atomcat+xml": [
        "atomcat"
    ], 
    "application/atomsvc+xml": [
        "atomsvc"
    ], 
    "application/base64": [
        "mm", 
        "mme"
    ], 
    "application/binhex": [
        "hqx"
    ], 
    "application/binhex4": [
        "hqx"
    ], 
    "application/book": [
        "boo"
    ], 
    "application/ccxml+xml": [
        "ccxml"
    ], 
    "application/cdf": [
        "cdf"
    ], 
    "application/cdmi-capability": [
        "cdmia"
    ], 
    "application/cdmi-container": [
        "cdmic"
    ], 
    "application/cdmi-domain": [
        "cdmid"
    ], 
    "application/cdmi-object": [
        "cdmio"
    ], 
    "application/cdmi-queue": [
        "cdmiq"
    ], 
    "application/clariscad": [
        "ccad"
    ], 
    "application/cu-seeme": [
        "cu"
    ], 
    "application/davmount+xml": [
        "davmount"
    ], 
    "application/docbook+xml": [
        "dbk"
    ], 
    "application/drafting": [
        "drw"
    ], 
    "application/dsptype": [
        "tsp"
    ], 
    "application/dssc+der": [
        "dssc"
    ], 
    "application/dssc+xml": [
        "xdssc"
    ], 
    "application/ecmascript": [
        "ecma"
    ], 
    "application/emma+xml": [
        "emma"
    ], 
    "application/envoy": [
        "evy"
    ], 
    "application/epub+zip": [
        "epub"
    ], 
    "application/excel": [
        "xl", 
        "xla", 
        "xlb", 
        "xlc", 
        "xld", 
        "xlk", 
        "xll", 
        "xlm", 
        "xls", 
        "xlt", 
        "xlv", 
        "xlw"
    ], 
    "application/exi": [
        "exi"
    ], 
    "application/font-tdpfr": [
        "pfr"
    ], 
    "application/fractals": [
        "fif"
    ], 
    "application/freeloader": [
        "frl"
    ], 
    "application/gml+xml": [
        "gml"
    ], 
    "application/gnutar": [
        "tgz"
    ], 
    "application/gpx+xml": [
        "gpx"
    ], 
    "application/groupwise": [
        "vew"
    ], 
    "application/gxf": [
        "gxf"
    ], 
    "application/hlp": [
        "hlp"
    ], 
    "application/hta": [
        "hta"
    ], 
    "application/hyperstudio": [
        "stk"
    ], 
    "application/i-deas": [
        "unv"
    ], 
    "application/iges": [
        "iges", 
        "igs"
    ], 
    "application/inf": [
        "inf"
    ], 
    "application/inkml+xml": [
        "ink", 
        "inkml"
    ], 
    "application/ipfix": [
        "ipfix"
    ], 
    "application/java": [
        "class"
    ], 
    "application/java-archive": [
        "jar"
    ], 
    "application/java-byte-code": [
        "class"
    ], 
    "application/java-serialized-object": [
        "ser"
    ], 
    "application/javascript": [
        "js"
    ], 
    "application/json": [
        "json"
    ], 
    "application/jsonml+json": [
        "jsonml"
    ], 
    "application/lha": [
        "lha"
    ], 
    "application/lost+xml": [
        "lostxml"
    ], 
    "application/lzx": [
        "lzx"
    ], 
    "application/mac-binary": [
        "bin"
    ], 
    "application/mac-binhex": [
        "hqx"
    ], 
    "application/mac-binhex40": [
        "hqx"
    ], 
    "application/macbinary": [
        "bin"
    ], 
    "application/mads+xml": [
        "mads"
    ], 
    "application/marc": [
        "mrc"
    ], 
    "application/marcxml+xml": [
        "mrcx"
    ], 
    "application/mathematica": [
        "ma", 
        "mb", 
        "nb"
    ], 
    "application/mathml+xml": [
        "mathml"
    ], 
    "application/mbedlet": [
        "mbd"
    ], 
    "application/mbox": [
        "mbox"
    ], 
    "application/mcad": [
        "mcd"
    ], 
    "application/mediaservercontrol+xml": [
        "mscml"
    ], 
    "application/metalink+xml": [
        "metalink"
    ], 
    "application/metalink4+xml": [
        "meta4"
    ], 
    "application/mets+xml": [
        "mets"
    ], 
    "application/mime": [
        "aps"
    ], 
    "application/mods+xml": [
        "mods"
    ], 
    "application/mp21": [
        "m21", 
        "mp21"
    ], 
    "application/mp4": [
        "m4p", 
        "mp4s"
    ], 
    "application/mspowerpoint": [
        "pot", 
        "pps", 
        "ppt", 
        "ppz"
    ], 
    "application/msword": [
        "doc", 
        "dot", 
        "w6w", 
        "wiz", 
        "word"
    ], 
    "application/mswrite": [
        "wri"
    ], 
    "application/mxf": [
        "mxf"
    ], 
    "application/netmc": [
        "mcp"
    ], 
    "application/octet-stream": [
        "a", 
        "arj", 
        "bin", 
        "bpk", 
        "buffer", 
        "com", 
        "deploy", 
        "dist", 
        "distz", 
        "dms", 
        "dump", 
        "lha", 
        "lhx", 
        "lrf", 
        "lzh", 
        "lzx", 
        "mar", 
        "o", 
        "pkg", 
        "so", 
        "uu", 
        "zoo"
    ], 
    "application/oda": [
        "oda"
    ], 
    "application/oebps-package+xml": [
        "opf"
    ], 
    "application/ogg": [
        "ogx"
    ], 
    "application/omdoc+xml": [
        "omdoc"
    ], 
    "application/onenote": [
        "onepkg", 
        "onetmp", 
        "onetoc", 
        "onetoc2"
    ], 
    "application/oxps": [
        "oxps"
    ], 
    "application/patch-ops-error+xml": [
        "xer"
    ], 
    "application/pdf": [
        "pdf"
    ], 
    "application/pgp-encrypted": [
        "pgp"
    ], 
    "application/pgp-signature": [
        "asc", 
        "sig"
    ], 
    "application/pics-rules": [
        "prf"
    ], 
    "application/pkcs-12": [
        "p12"
    ], 
    "application/pkcs-crl": [
        "crl"
    ], 
    "application/pkcs10": [
        "p10"
    ], 
    "application/pkcs7-mime": [
        "p7c", 
        "p7m"
    ], 
    "application/pkcs7-signature": [
        "p7s"
    ], 
    "application/pkcs8": [
        "p8"
    ], 
    "application/pkix-attr-cert": [
        "ac"
    ], 
    "application/pkix-cert": [
        "cer", 
        "crt"
    ], 
    "application/pkix-crl": [
        "crl"
    ], 
    "application/pkix-pkipath": [
        "pkipath"
    ], 
    "application/pkixcmp": [
        "pki"
    ], 
    "application/plain": [
        "text"
    ], 
    "application/pls+xml": [
        "pls"
    ], 
    "application/postscript": [
        "ai", 
        "eps", 
        "ps"
    ], 
    "application/powerpoint": [
        "ppt"
    ], 
    "application/pro_eng": [
        "part", 
        "prt"
    ], 
    "application/prs.cww": [
        "cww"
    ], 
    "application/pskc+xml": [
        "pskcxml"
    ], 
    "application/rdf+xml": [
        "rdf"
    ], 
    "application/reginfo+xml": [
        "rif"
    ], 
    "application/relax-ng-compact-syntax": [
        "rnc"
    ], 
    "application/resource-lists+xml": [
        "rl"
    ], 
    "application/resource-lists-diff+xml": [
        "rld"
    ], 
    "application/ringing-tones": [
        "rng"
    ], 
    "application/rls-services+xml": [
        "rs"
    ], 
    "application/rpki-ghostbusters": [
        "gbr"
    ], 
    "application/rpki-manifest": [
        "mft"
    ], 
    "application/rpki-roa": [
        "roa"
    ], 
    "application/rsd+xml": [
        "rsd"
    ], 
    "application/rss+xml": [
        "rss"
    ], 
    "application/rtf": [
        "rtf", 
        "rtx"
    ], 
    "application/sbml+xml": [
        "sbml"
    ], 
    "application/scvp-cv-request": [
        "scq"
    ], 
    "application/scvp-cv-response": [
        "scs"
    ], 
    "application/scvp-vp-request": [
        "spq"
    ], 
    "application/scvp-vp-response": [
        "spp"
    ], 
    "application/sdp": [
        "sdp"
    ], 
    "application/sea": [
        "sea"
    ], 
    "application/set": [
        "set"
    ], 
    "application/set-payment-initiation": [
        "setpay"
    ], 
    "application/set-registration-initiation": [
        "setreg"
    ], 
    "application/shf+xml": [
        "shf"
    ], 
    "application/sla": [
        "stl"
    ], 
    "application/smil+xml": [
        "smi", 
        "smil"
    ], 
    "application/solids": [
        "sol"
    ], 
    "application/sounder": [
        "sdr"
    ], 
    "application/sparql-query": [
        "rq"
    ], 
    "application/sparql-results+xml": [
        "srx"
    ], 
    "application/srgs": [
        "gram"
    ], 
    "application/srgs+xml": [
        "grxml"
    ], 
    "application/sru+xml": [
        "sru"
    ], 
    "application/ssdl+xml": [
        "ssdl"
    ], 
    "application/ssml+xml": [
        "ssml"
    ], 
    "application/step": [
        "step", 
        "stp"
    ], 
    "application/streamingmedia": [
        "ssm"
    ], 
    "application/tei+xml": [
        "tei", 
        "teicorpus"
    ], 
    "application/thraud+xml": [
        "tfi"
    ], 
    "application/timestamped-data": [
        "tsd"
    ], 
    "application/toolbook": [
        "tbk"
    ], 
    "application/vda": [
        "vda"
    ], 
    "application/vnd.3gpp.pic-bw-large": [
        "plb"
    ], 
    "application/vnd.3gpp.pic-bw-small": [
        "psb"
    ], 
    "application/vnd.3gpp.pic-bw-var": [
        "pvb"
    ], 
    "application/vnd.3gpp2.tcap": [
        "tcap"
    ], 
    "application/vnd.3m.post-it-notes": [
        "pwn"
    ], 
    "application/vnd.accpac.simply.aso": [
        "aso"
    ], 
    "application/vnd.accpac.simply.imp": [
        "imp"
    ], 
    "application/vnd.acucobol": [
        "acu"
    ], 
    "application/vnd.acucorp": [
        "acutc", 
        "atc"
    ], 
    "application/vnd.adobe.air-application-installer-package+zip": [
        "air"
    ], 
    "application/vnd.adobe.formscentral.fcdt": [
        "fcdt"
    ], 
    "application/vnd.adobe.fxp": [
        "fxp", 
        "fxpl"
    ], 
    "application/vnd.adobe.xdp+xml": [
        "xdp"
    ], 
    "application/vnd.adobe.xfdf": [
        "xfdf"
    ], 
    "application/vnd.ahead.space": [
        "ahead"
    ], 
    "application/vnd.airzip.filesecure.azf": [
        "azf"
    ], 
    "application/vnd.airzip.filesecure.azs": [
        "azs"
    ], 
    "application/vnd.amazon.ebook": [
        "azw"
    ], 
    "application/vnd.americandynamics.acc": [
        "acc"
    ], 
    "application/vnd.amiga.ami": [
        "ami"
    ], 
    "application/vnd.android.package-archive": [
        "apk"
    ], 
    "application/vnd.anser-web-certificate-issue-initiation": [
        "cii"
    ], 
    "application/vnd.anser-web-funds-transfer-initiation": [
        "fti"
    ], 
    "application/vnd.antix.game-component": [
        "atx"
    ], 
    "application/vnd.apple.installer+xml": [
        "mpkg"
    ], 
    "application/vnd.aristanetworks.swi": [
        "swi"
    ], 
    "application/vnd.astraea-software.iota": [
        "iota"
    ], 
    "application/vnd.audiograph": [
        "aep"
    ], 
    "application/vnd.blueice.multipass": [
        "mpm"
    ], 
    "application/vnd.bmi": [
        "bmi"
    ], 
    "application/vnd.businessobjects": [
        "rep"
    ], 
    "application/vnd.chemdraw+xml": [
        "cdxml"
    ], 
    "application/vnd.chipnuts.karaoke-mmd": [
        "mmd"
    ], 
    "application/vnd.cinderella": [
        "cdy"
    ], 
    "application/vnd.claymore": [
        "cla"
    ], 
    "application/vnd.cloanto.rp9": [
        "rp9"
    ], 
    "application/vnd.clonk.c4group": [
        "c4d", 
        "c4f", 
        "c4g", 
        "c4p", 
        "c4u"
    ], 
    "application/vnd.cluetrust.cartomobile-config": [
        "c11amc"
    ], 
    "application/vnd.cluetrust.cartomobile-config-pkg": [
        "c11amz"
    ], 
    "application/vnd.commonspace": [
        "csp"
    ], 
    "application/vnd.contact.cmsg": [
        "cdbcmsg"
    ], 
    "application/vnd.cosmocaller": [
        "cmc"
    ], 
    "application/vnd.crick.clicker": [
        "clkx"
    ], 
    "application/vnd.crick.clicker.keyboard": [
        "clkk"
    ], 
    "application/vnd.crick.clicker.palette": [
        "clkp"
    ], 
    "application/vnd.crick.clicker.template": [
        "clkt"
    ], 
    "application/vnd.crick.clicker.wordbank": [
        "clkw"
    ], 
    "application/vnd.criticaltools.wbs+xml": [
        "wbs"
    ], 
    "application/vnd.ctc-posml": [
        "pml"
    ], 
    "application/vnd.cups-ppd": [
        "ppd"
    ], 
    "application/vnd.curl.car": [
        "car"
    ], 
    "application/vnd.curl.pcurl": [
        "pcurl"
    ], 
    "application/vnd.dart": [
        "dart"
    ], 
    "application/vnd.data-vision.rdz": [
        "rdz"
    ], 
    "application/vnd.dece.data": [
        "uvd", 
        "uvf", 
        "uvvd", 
        "uvvf"
    ], 
    "application/vnd.dece.ttml+xml": [
        "uvt", 
        "uvvt"
    ], 
    "application/vnd.dece.unspecified": [
        "uvvx", 
        "uvx"
    ], 
    "application/vnd.dece.zip": [
        "uvvz", 
        "uvz"
    ], 
    "application/vnd.denovo.fcselayout-link": [
        "fe_launch"
    ], 
    "application/vnd.dna": [
        "dna"
    ], 
    "application/vnd.dolby.mlp": [
        "mlp"
    ], 
    "application/vnd.dpgraph": [
        "dpg"
    ], 
    "application/vnd.dreamfactory": [
        "dfac"
    ], 
    "application/vnd.ds-keypoint": [
        "kpxx"
    ], 
    "application/vnd.dvb.ait": [
        "ait"
    ], 
    "application/vnd.dvb.service": [
        "svc"
    ], 
    "application/vnd.dynageo": [
        "geo"
    ], 
    "application/vnd.ecowin.chart": [
        "mag"
    ], 
    "application/vnd.enliven": [
        "nml"
    ], 
    "application/vnd.epson.esf": [
        "esf"
    ], 
    "application/vnd.epson.msf": [
        "msf"
    ], 
    "application/vnd.epson.quickanime": [
        "qam"
    ], 
    "application/vnd.epson.salt": [
        "slt"
    ], 
    "application/vnd.epson.ssf": [
        "ssf"
    ], 
    "application/vnd.eszigno3+xml": [
        "es3", 
        "et3"
    ], 
    "application/vnd.ezpix-album": [
        "ez2"
    ], 
    "application/vnd.ezpix-package": [
        "ez3"
    ], 
    "application/vnd.fdf": [
        "fdf"
    ], 
    "application/vnd.fdsn.mseed": [
        "mseed"
    ], 
    "application/vnd.fdsn.seed": [
        "dataless", 
        "seed"
    ], 
    "application/vnd.flographit": [
        "gph"
    ], 
    "application/vnd.fluxtime.clip": [
        "ftc"
    ], 
    "application/vnd.framemaker": [
        "book", 
        "fm", 
        "frame", 
        "maker"
    ], 
    "application/vnd.frogans.fnc": [
        "fnc"
    ], 
    "application/vnd.frogans.ltf": [
        "ltf"
    ], 
    "application/vnd.fsc.weblaunch": [
        "fsc"
    ], 
    "application/vnd.fujitsu.oasys": [
        "oas"
    ], 
    "application/vnd.fujitsu.oasys2": [
        "oa2"
    ], 
    "application/vnd.fujitsu.oasys3": [
        "oa3"
    ], 
    "application/vnd.fujitsu.oasysgp": [
        "fg5"
    ], 
    "application/vnd.fujitsu.oasysprs": [
        "bh2"
    ], 
    "application/vnd.fujixerox.ddd": [
        "ddd"
    ], 
    "application/vnd.fujixerox.docuworks": [
        "xdw"
    ], 
    "application/vnd.fujixerox.docuworks.binder": [
        "xbd"
    ], 
    "application/vnd.fuzzysheet": [
        "fzs"
    ], 
    "application/vnd.genomatix.tuxedo": [
        "txd"
    ], 
    "application/vnd.geogebra.file": [
        "ggb"
    ], 
    "application/vnd.geogebra.tool": [
        "ggt"
    ], 
    "application/vnd.geometry-explorer": [
        "gex", 
        "gre"
    ], 
    "application/vnd.geonext": [
        "gxt"
    ], 
    "application/vnd.geoplan": [
        "g2w"
    ], 
    "application/vnd.geospace": [
        "g3w"
    ], 
    "application/vnd.gmx": [
        "gmx"
    ], 
    "application/vnd.google-earth.kml+xml": [
        "kml"
    ], 
    "application/vnd.google-earth.kmz": [
        "kmz"
    ], 
    "application/vnd.grafeq": [
        "gqf", 
        "gqs"
    ], 
    "application/vnd.groove-account": [
        "gac"
    ], 
    "application/vnd.groove-help": [
        "ghf"
    ], 
    "application/vnd.groove-identity-message": [
        "gim"
    ], 
    "application/vnd.groove-injector": [
        "grv"
    ], 
    "application/vnd.groove-tool-message": [
        "gtm"
    ], 
    "application/vnd.groove-tool-template": [
        "tpl"
    ], 
    "application/vnd.groove-vcard": [
        "vcg"
    ], 
    "application/vnd.hal+xml": [
        "hal"
    ], 
    "application/vnd.handheld-entertainment+xml": [
        "zmm"
    ], 
    "application/vnd.hbci": [
        "hbci"
    ], 
    "application/vnd.hhe.lesson-player": [
        "les"
    ], 
    "application/vnd.hp-hpgl": [
        "hgl", 
        "hpg", 
        "hpgl"
    ], 
    "application/vnd.hp-hpid": [
        "hpid"
    ], 
    "application/vnd.hp-hps": [
        "hps"
    ], 
    "application/vnd.hp-jlyt": [
        "jlt"
    ], 
    "application/vnd.hp-pcl": [
        "pcl"
    ], 
    "application/vnd.hp-pclxl": [
        "pclxl"
    ], 
    "application/vnd.hydrostatix.sof-data": [
        "sfd-hdstx"
    ], 
    "application/vnd.ibm.minipay": [
        "mpy"
    ], 
    "application/vnd.ibm.modcap": [
        "afp", 
        "list3820", 
        "listafp"
    ], 
    "application/vnd.ibm.rights-management": [
        "irm"
    ], 
    "application/vnd.ibm.secure-container": [
        "sc"
    ], 
    "application/vnd.iccprofile": [
        "icc", 
        "icm"
    ], 
    "application/vnd.igloader": [
        "igl"
    ], 
    "application/vnd.immervision-ivp": [
        "ivp"
    ], 
    "application/vnd.immervision-ivu": [
        "ivu"
    ], 
    "application/vnd.insors.igm": [
        "igm"
    ], 
    "application/vnd.intercon.formnet": [
        "xpw", 
        "xpx"
    ], 
    "application/vnd.intergeo": [
        "i2g"
    ], 
    "application/vnd.intu.qbo": [
        "qbo"
    ], 
    "application/vnd.intu.qfx": [
        "qfx"
    ], 
    "application/vnd.ipunplugged.rcprofile": [
        "rcprofile"
    ], 
    "application/vnd.irepository.package+xml": [
        "irp"
    ], 
    "application/vnd.is-xpr": [
        "xpr"
    ], 
    "application/vnd.isac.fcs": [
        "fcs"
    ], 
    "application/vnd.jam": [
        "jam"
    ], 
    "application/vnd.jcp.javame.midlet-rms": [
        "rms"
    ], 
    "application/vnd.jisp": [
        "jisp"
    ], 
    "application/vnd.joost.joda-archive": [
        "joda"
    ], 
    "application/vnd.kahootz": [
        "ktr", 
        "ktz"
    ], 
    "application/vnd.kde.karbon": [
        "karbon"
    ], 
    "application/vnd.kde.kchart": [
        "chrt"
    ], 
    "application/vnd.kde.kformula": [
        "kfo"
    ], 
    "application/vnd.kde.kivio": [
        "flw"
    ], 
    "application/vnd.kde.kontour": [
        "kon"
    ], 
    "application/vnd.kde.kpresenter": [
        "kpr", 
        "kpt"
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    "application/x-iso9660-image": [
        "iso"
    ], 
    "application/x-java-class": [
        "class"
    ], 
    "application/x-java-commerce": [
        "jcm"
    ], 
    "application/x-java-jnlp-file": [
        "jnlp"
    ], 
    "application/x-killustrator": [
        "kil"
    ], 
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        "ksh"
    ], 
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        "latex", 
        "ltx"
    ], 
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        "lha"
    ], 
    "application/x-lisp": [
        "lsp"
    ], 
    "application/x-livescreen": [
        "ivy"
    ], 
    "application/x-lotus": [
        "wq1"
    ], 
    "application/x-lotusscreencam": [
        "scm"
    ], 
    "application/x-lua-bytecode": [
        "luac"
    ], 
    "application/x-lzh": [
        "lzh"
    ], 
    "application/x-lzx": [
        "lzx"
    ], 
    "application/x-mac-binhex40": [
        "hqx"
    ], 
    "application/x-macbinary": [
        "bin"
    ], 
    "application/x-magic-cap-package-1.0": [
        "mc"
    ], 
    "application/x-mathcad": [
        "mcd"
    ], 
    "application/x-meme": [
        "mm"
    ], 
    "application/x-midi": [
        "mid", 
        "midi"
    ], 
    "application/x-mie": [
        "mie"
    ], 
    "application/x-mif": [
        "mif"
    ], 
    "application/x-mix-transfer": [
        "nix"
    ], 
    "application/x-mobipocket-ebook": [
        "mobi", 
        "prc"
    ], 
    "application/x-mpegURL": [
        "m3u8"
    ], 
    "application/x-mplayer2": [
        "asx"
    ], 
    "application/x-ms-application": [
        "application"
    ], 
    "application/x-ms-shortcut": [
        "lnk"
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        "wmd"
    ], 
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        "xbap"
    ], 
    "application/x-msaccess": [
        "mdb"
    ], 
    "application/x-msbinder": [
        "obd"
    ], 
    "application/x-mscardfile": [
        "crd"
    ], 
    "application/x-msclip": [
        "clp"
    ], 
    "application/x-msdownload": [
        "bat", 
        "dll", 
        "exe", 
        "msi"
    ], 
    "application/x-msexcel": [
        "xla", 
        "xls", 
        "xlw"
    ], 
    "application/x-msmediaview": [
        "m13", 
        "m14", 
        "mvb"
    ], 
    "application/x-msmetafile": [
        "emf", 
        "emz", 
        "wmf", 
        "wmz"
    ], 
    "application/x-msmoney": [
        "mny"
    ], 
    "application/x-mspowerpoint": [
        "ppt"
    ], 
    "application/x-mspublisher": [
        "pub"
    ], 
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        "scd"
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        "trm"
    ], 
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        "nvd"
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        "nc"
    ], 
    "application/x-nokia-9000-communicator-add-on-software": [
        "aos"
    ], 
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        "nzb"
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        "omc"
    ], 
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        "omcd"
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    "application/x-omcregerator": [
        "omcr"
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        "pm4", 
        "pm5"
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        "plx"
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        "p10"
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        "p12", 
        "pfx"
    ], 
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        "p7b", 
        "spc"
    ], 
    "application/x-pkcs7-certreqresp": [
        "p7r"
    ], 
    "application/x-pkcs7-mime": [
        "p7c", 
        "p7m"
    ], 
    "application/x-pkcs7-signature": [
        "p7a"
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        "css"
    ], 
    "application/x-portable-anymap": [
        "pnm"
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        "mpv", 
        "mpx"
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    "application/x-python-code": [
        "pyo"
    ], 
    "application/x-qpro": [
        "wb1"
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        "rar"
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    "application/x-research-info-systems": [
        "ris"
    ], 
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        "rtf"
    ], 
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        "sdp"
    ], 
    "application/x-sea": [
        "sea"
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        "sl"
    ], 
    "application/x-sh": [
        "sh"
    ], 
    "application/x-shar": [
        "sh", 
        "shar"
    ], 
    "application/x-shockwave-flash": [
        "swf"
    ], 
    "application/x-silverlight-app": [
        "xap"
    ], 
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        "sit"
    ], 
    "application/x-sprite": [
        "spr", 
        "sprite"
    ], 
    "application/x-sql": [
        "sql"
    ], 
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    "application/x-stuffitx": [
        "sitx"
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        "srt"
    ], 
    "application/x-sv4cpio": [
        "sv4cpio"
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    "application/x-sv4crc": [
        "sv4crc"
    ], 
    "application/x-t3vm-image": [
        "t3"
    ], 
    "application/x-tads": [
        "gam"
    ], 
    "application/x-tar": [
        "tar"
    ], 
    "application/x-tbook": [
        "sbk", 
        "tbk"
    ], 
    "application/x-tcl": [
        "tcl"
    ], 
    "application/x-tex": [
        "tex"
    ], 
    "application/x-tex-tfm": [
        "tfm"
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        "texi", 
        "texinfo"
    ], 
    "application/x-tgif": [
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    ], 
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        "avi"
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        "xpix"
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        "vrml"
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    "application/x-wais-source": [
        "src", 
        "wsrc"
    ], 
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        "webapp"
    ], 
    "application/x-winhelp": [
        "hlp"
    ], 
    "application/x-wintalk": [
        "wtk"
    ], 
    "application/x-world": [
        "svr", 
        "wrl"
    ], 
    "application/x-wpwin": [
        "wpd"
    ], 
    "application/x-wri": [
        "wri"
    ], 
    "application/x-x509-ca-cert": [
        "cer", 
        "crt", 
        "der"
    ], 
    "application/x-x509-user-cert": [
        "crt"
    ], 
    "application/x-xfig": [
        "fig"
    ], 
    "application/x-xliff+xml": [
        "xlf"
    ], 
    "application/x-xpinstall": [
        "xpi"
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        "xz"
    ], 
    "application/x-zip-compressed": [
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        "z1", 
        "z2", 
        "z3", 
        "z4", 
        "z5", 
        "z6", 
        "z7", 
        "z8"
    ], 
    "application/xaml+xml": [
        "xaml"
    ], 
    "application/xcap-diff+xml": [
        "xdf"
    ], 
    "application/xenc+xml": [
        "xenc"
    ], 
    "application/xhtml+xml": [
        "xht", 
        "xhtml"
    ], 
    "application/xml": [
        "xml", 
        "xpdl", 
        "xsl"
    ], 
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        "dtd"
    ], 
    "application/xop+xml": [
        "xop"
    ], 
    "application/xproc+xml": [
        "xpl"
    ], 
    "application/xslt+xml": [
        "xslt"
    ], 
    "application/xspf+xml": [
        "xspf"
    ], 
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        "mxml", 
        "xhvml", 
        "xvm", 
        "xvml"
    ], 
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        "yang"
    ], 
    "application/yin+xml": [
        "yin"
    ], 
    "application/zip": [
        "zip"
    ], 
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        "adp"
    ], 
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        "aif", 
        "aifc", 
        "aiff"
    ], 
    "audio/basic": [
        "au", 
        "snd"
    ], 
    "audio/flac": [
        "flac"
    ], 
    "audio/it": [
        "it"
    ], 
    "audio/make": [
        "funk", 
        "my", 
        "pfunk"
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        "kar", 
        "mid", 
        "midi", 
        "rmi"
    ], 
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        "mod"
    ], 
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        "m4a", 
        "mp4a"
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        "m3a", 
        "mp2", 
        "mp2a", 
        "mpa", 
        "mpg", 
        "mpga"
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        "mp3"
    ], 
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        "la", 
        "lma"
    ], 
    "audio/ogg": [
        "oga", 
        "ogg", 
        "spx"
    ], 
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        "s3m"
    ], 
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        "sil"
    ], 
    "audio/tsp-audio": [
        "tsi"
    ], 
    "audio/tsplayer": [
        "tsp"
    ], 
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        "uva", 
        "uvva"
    ], 
    "audio/vnd.digital-winds": [
        "eol"
    ], 
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        "dra"
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        "dts"
    ], 
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        "dtshd"
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    "audio/vnd.lucent.voice": [
        "lvp"
    ], 
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        "pya"
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    "audio/vnd.nuera.ecelp4800": [
        "ecelp4800"
    ], 
    "audio/vnd.nuera.ecelp7470": [
        "ecelp7470"
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    "audio/vnd.nuera.ecelp9600": [
        "ecelp9600"
    ], 
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        "qcp"
    ], 
    "audio/vnd.rip": [
        "rip"
    ], 
    "audio/voc": [
        "voc"
    ], 
    "audio/wav": [
        "wav"
    ], 
    "audio/webm": [
        "weba"
    ], 
    "audio/x-aac": [
        "aac"
    ], 
    "audio/x-adpcm": [
        "snd"
    ], 
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        "aif", 
        "aifc", 
        "aiff"
    ], 
    "audio/x-caf": [
        "caf"
    ], 
    "audio/x-gsm": [
        "gsd", 
        "gsm"
    ], 
    "audio/x-liveaudio": [
        "lam"
    ], 
    "audio/x-matroska": [
        "mka"
    ], 
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        "mid", 
        "midi"
    ], 
    "audio/x-midi": [
        "mid", 
        "midi"
    ], 
    "audio/x-mod": [
        "mod"
    ], 
    "audio/x-mpeg": [
        "mp2"
    ], 
    "audio/x-mpeg-3": [
        "mp3"
    ], 
    "audio/x-mpegurl": [
        "m3u"
    ], 
    "audio/x-ms-wax": [
        "wax"
    ], 
    "audio/x-ms-wma": [
        "wma"
    ], 
    "audio/x-nspaudio": [
        "la", 
        "lma"
    ], 
    "audio/x-pn-realaudio": [
        "ra", 
        "ram", 
        "rm", 
        "rmm", 
        "rmp"
    ], 
    "audio/x-pn-realaudio-plugin": [
        "ra", 
        "rmp", 
        "rpm"
    ], 
    "audio/x-realaudio": [
        "ra"
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    "audio/x-twinvq": [
        "vqf"
    ], 
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        "vqe", 
        "vql"
    ], 
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        "mjf"
    ], 
    "audio/x-voc": [
        "voc"
    ], 
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        "wav"
    ], 
    "audio/xm": [
        "xm"
    ], 
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        "cdx"
    ], 
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        "cif"
    ], 
    "chemical/x-cmdf": [
        "cmdf"
    ], 
    "chemical/x-cml": [
        "cml"
    ], 
    "chemical/x-csml": [
        "csml"
    ], 
    "chemical/x-xyz": [
        "xyz"
    ], 
    "drawing/x-dwf (old)": [
        "dwf"
    ], 
    "font/opentype": [
        "otf"
    ], 
    "i-world/i-vrml": [
        "ivr"
    ], 
    "image/bmp": [
        "bm", 
        "bmp"
    ], 
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        "cgm"
    ], 
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        "ras", 
        "rast"
    ], 
    "image/fif": [
        "fif"
    ], 
    "image/florian": [
        "turbot"
    ], 
    "image/g3fax": [
        "g3"
    ], 
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        "gif"
    ], 
    "image/ief": [
        "ief", 
        "iefs"
    ], 
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        "jfif", 
        "jfif-tbnl", 
        "jpe", 
        "jpeg", 
        "jpg"
    ], 
    "image/jutvision": [
        "jut"
    ], 
    "image/ktx": [
        "ktx"
    ], 
    "image/naplps": [
        "nap", 
        "naplps"
    ], 
    "image/pict": [
        "pict"
    ], 
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        "jfif", 
        "jpe", 
        "jpeg", 
        "jpg"
    ], 
    "image/png": [
        "png", 
        "x-png"
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        "btif"
    ], 
    "image/sgi": [
        "sgi"
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        "svg", 
        "svgz"
    ], 
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        "tif", 
        "tiff"
    ], 
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        "mcf"
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        "psd"
    ], 
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        "uvg", 
        "uvi", 
        "uvvg", 
        "uvvi"
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        "djv", 
        "djvu"
    ], 
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        "svf"
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        "fpx"
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        "fst"
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        "mdi"
    ], 
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        "wdp"
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        "fpx", 
        "npx"
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        "rf"
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        "wbmp"
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        "webp"
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        "cmx"
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        "svf"
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        "fh", 
        "fh4", 
        "fh5", 
        "fh7", 
        "fhc"
    ], 
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    ], 
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        "sid"
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        "niff"
    ], 
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        "pcx"
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        "pct", 
        "pic"
    ], 
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        "pnm"
    ], 
    "image/x-portable-bitmap": [
        "pbm"
    ], 
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        "pgm"
    ], 
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        "ppm"
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        "qti", 
        "qtif"
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        "rgb"
    ], 
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        "tiff"
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        "bmp"
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        "xbm"
    ], 
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        "xpm"
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        "xwd"
    ], 
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        "xbm"
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    "image/xpm": [
        "xpm"
    ], 
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        "mht", 
        "mhtml", 
        "mime", 
        "nws"
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        "iges", 
        "igs"
    ], 
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        "mesh", 
        "msh", 
        "silo"
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        "dae"
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        "dwf"
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        "vtu"
    ], 
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        "vrml", 
        "wrl", 
        "wrz"
    ], 
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        "pov"
    ], 
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        "x3db", 
        "x3dbz"
    ], 
    "model/x3d+vrml": [
        "x3dv", 
        "x3dvz"
    ], 
    "model/x3d+xml": [
        "x3d", 
        "x3dz"
    ], 
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        "gzip"
    ], 
    "multipart/x-ustar": [
        "ustar"
    ], 
    "multipart/x-zip": [
        "zip"
    ], 
    "music/crescendo": [
        "mid", 
        "midi"
    ], 
    "music/x-karaoke": [
        "kar"
    ], 
    "paleovu/x-pv": [
        "pvu"
    ], 
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        "asp"
    ], 
    "text/cache-manifest": [
        "appcache", 
        "manifest"
    ], 
    "text/calendar": [
        "ics", 
        "ifb"
    ], 
    "text/css": [
        "css"
    ], 
    "text/csv": [
        "csv"
    ], 
    "text/event-stream": [
        "event-stream"
    ], 
    "text/html": [
        "acgi", 
        "htm", 
        "html", 
        "htmls", 
        "htx", 
        "shtml"
    ], 
    "text/mcf": [
        "mcf"
    ], 
    "text/n3": [
        "n3"
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    "text/plain": [
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        "cc", 
        "com", 
        "conf", 
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        "for", 
        "g", 
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        "java", 
        "json", 
        "list", 
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        "pl", 
        "sdml", 
        "text", 
        "txt"
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        "dsc"
    ], 
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        "rt", 
        "rtf", 
        "rtx"
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        "wsc"
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        "sgm", 
        "sgml"
    ], 
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    "text/troff": [
        "man", 
        "me", 
        "ms", 
        "roff", 
        "t", 
        "tr"
    ], 
    "text/turtle": [
        "ttl"
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        "uni", 
        "unis", 
        "uri", 
        "uris", 
        "urls"
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        "vcard"
    ], 
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        "curl"
    ], 
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        "dcurl"
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    "text/vnd.curl.mcurl": [
        "mcurl"
    ], 
    "text/vnd.curl.scurl": [
        "scurl"
    ], 
    "text/vnd.dvb.subtitle": [
        "sub"
    ], 
    "text/vnd.fly": [
        "fly"
    ], 
    "text/vnd.fmi.flexstor": [
        "flx"
    ], 
    "text/vnd.graphviz": [
        "gv"
    ], 
    "text/vnd.in3d.3dml": [
        "3dml"
    ], 
    "text/vnd.in3d.spot": [
        "spot"
    ], 
    "text/vnd.rn-realtext": [
        "rt"
    ], 
    "text/vnd.sun.j2me.app-descriptor": [
        "jad"
    ], 
    "text/vnd.wap.si": [
        "si"
    ], 
    "text/vnd.wap.wml": [
        "wml"
    ], 
    "text/vnd.wap.wmlscript": [
        "wmls"
    ], 
    "text/vtt": [
        "vtt"
    ], 
    "text/webviewhtml": [
        "htt"
    ], 
    "text/x-asm": [
        "asm", 
        "s"
    ], 
    "text/x-audiosoft-intra": [
        "aip"
    ], 
    "text/x-c": [
        "c", 
        "cc", 
        "cpp", 
        "cxx", 
        "dic"
    ], 
    "text/x-component": [
        "htc"
    ], 
    "text/x-fortran": [
        "f", 
        "f77", 
        "f90", 
        "for"
    ], 
    "text/x-h": [
        "h", 
        "hh"
    ], 
    "text/x-java-source": [
        "jav", 
        "java"
    ], 
    "text/x-la-asf": [
        "lsx"
    ], 
    "text/x-lua": [
        "lua"
    ], 
    "text/x-m": [
        "m"
    ], 
    "text/x-markdown": [
        "markdown", 
        "md", 
        "mkd"
    ], 
    "text/x-nfo": [
        "nfo"
    ], 
    "text/x-opml": [
        "opml"
    ], 
    "text/x-pascal": [
        "p", 
        "pas"
    ], 
    "text/x-php": [
        "php"
    ], 
    "text/x-script": [
        "hlb"
    ], 
    "text/x-script.csh": [
        "csh"
    ], 
    "text/x-script.elisp": [
        "el"
    ], 
    "text/x-script.guile": [
        "scm"
    ], 
    "text/x-script.ksh": [
        "ksh"
    ], 
    "text/x-script.lisp": [
        "lsp"
    ], 
    "text/x-script.perl": [
        "pl"
    ], 
    "text/x-script.perl-module": [
        "pm"
    ], 
    "text/x-script.phyton": [
        "py"
    ], 
    "text/x-script.rexx": [
        "rexx"
    ], 
    "text/x-script.scheme": [
        "scm"
    ], 
    "text/x-script.sh": [
        "sh"
    ], 
    "text/x-script.tcl": [
        "tcl"
    ], 
    "text/x-script.tcsh": [
        "tcsh"
    ], 
    "text/x-script.zsh": [
        "zsh"
    ], 
    "text/x-server-parsed-html": [
        "shtml", 
        "ssi"
    ], 
    "text/x-setext": [
        "etx"
    ], 
    "text/x-sfv": [
        "sfv"
    ], 
    "text/x-sgml": [
        "sgm", 
        "sgml"
    ], 
    "text/x-speech": [
        "spc", 
        "talk"
    ], 
    "text/x-uil": [
        "uil"
    ], 
    "text/x-uuencode": [
        "uu", 
        "uue"
    ], 
    "text/x-vcalendar": [
        "vcs"
    ], 
    "text/x-vcard": [
        "vcf"
    ], 
    "text/xml": [
        "xml"
    ], 
    "video/3gpp": [
        "3gp"
    ], 
    "video/3gpp2": [
        "3g2"
    ], 
    "video/MP2T": [
        "ts"
    ], 
    "video/animaflex": [
        "afl"
    ], 
    "video/avi": [
        "avi"
    ], 
    "video/avs-video": [
        "avs"
    ], 
    "video/dl": [
        "dl"
    ], 
    "video/fli": [
        "fli"
    ], 
    "video/gl": [
        "gl"
    ], 
    "video/h261": [
        "h261"
    ], 
    "video/h263": [
        "h263"
    ], 
    "video/h264": [
        "h264"
    ], 
    "video/jpeg": [
        "jpgv"
    ], 
    "video/jpm": [
        "jpgm", 
        "jpm"
    ], 
    "video/mj2": [
        "mj2", 
        "mjp2"
    ], 
    "video/mp4": [
        "mp4", 
        "mp4v", 
        "mpg4"
    ], 
    "video/mpeg": [
        "m1v", 
        "m2v", 
        "mp2", 
        "mp3", 
        "mpa", 
        "mpe", 
        "mpeg", 
        "mpg"
    ], 
    "video/msvideo": [
        "avi"
    ], 
    "video/ogg": [
        "ogv"
    ], 
    "video/quicktime": [
        "moov", 
        "mov", 
        "qt"
    ], 
    "video/vdo": [
        "vdo"
    ], 
    "video/vivo": [
        "viv", 
        "vivo"
    ], 
    "video/vnd.dece.hd": [
        "uvh", 
        "uvvh"
    ], 
    "video/vnd.dece.mobile": [
        "uvm", 
        "uvvm"
    ], 
    "video/vnd.dece.pd": [
        "uvp", 
        "uvvp"
    ], 
    "video/vnd.dece.sd": [
        "uvs", 
        "uvvs"
    ], 
    "video/vnd.dece.video": [
        "uvv", 
        "uvvv"
    ], 
    "video/vnd.dvb.file": [
        "dvb"
    ], 
    "video/vnd.fvt": [
        "fvt"
    ], 
    "video/vnd.mpegurl": [
        "m4u", 
        "mxu"
    ], 
    "video/vnd.ms-playready.media.pyv": [
        "pyv"
    ], 
    "video/vnd.rn-realvideo": [
        "rv"
    ], 
    "video/vnd.uvvu.mp4": [
        "uvu", 
        "uvvu"
    ], 
    "video/vnd.vivo": [
        "viv", 
        "vivo"
    ], 
    "video/vosaic": [
        "vos"
    ], 
    "video/webm": [
        "webm"
    ], 
    "video/x-amt-demorun": [
        "xdr"
    ], 
    "video/x-amt-showrun": [
        "xsr"
    ], 
    "video/x-atomic3d-feature": [
        "fmf"
    ], 
    "video/x-dl": [
        "dl"
    ], 
    "video/x-dv": [
        "dif", 
        "dv"
    ], 
    "video/x-f4v": [
        "f4v"
    ], 
    "video/x-fli": [
        "fli"
    ], 
    "video/x-flv": [
        "flv"
    ], 
    "video/x-gl": [
        "gl"
    ], 
    "video/x-isvideo": [
        "isu"
    ], 
    "video/x-m4v": [
        "m4v"
    ], 
    "video/x-matroska": [
        "mk3d", 
        "mks", 
        "mkv"
    ], 
    "video/x-mng": [
        "mng"
    ], 
    "video/x-motion-jpeg": [
        "mjpg"
    ], 
    "video/x-mpeg": [
        "mp2", 
        "mp3"
    ], 
    "video/x-mpeq2a": [
        "mp2"
    ], 
    "video/x-ms-asf": [
        "asf", 
        "asx"
    ], 
    "video/x-ms-asf-plugin": [
        "asx"
    ], 
    "video/x-ms-vob": [
        "vob"
    ], 
    "video/x-ms-wm": [
        "wm"
    ], 
    "video/x-ms-wmv": [
        "wmv"
    ], 
    "video/x-ms-wmx": [
        "wmx"
    ], 
    "video/x-ms-wvx": [
        "wvx"
    ], 
    "video/x-msvideo": [
        "avi"
    ], 
    "video/x-qtc": [
        "qtc"
    ], 
    "video/x-scm": [
        "scm"
    ], 
    "video/x-sgi-movie": [
        "movie", 
        "mv"
    ], 
    "video/x-smv": [
        "smv"
    ], 
    "www/mime": [
        "mime"
    ], 
    "x-conference/x-cooltalk": [
        "ice"
    ], 
    "x-music/x-midi": [
        "mid", 
        "midi"
    ], 
    "x-world/x-3dmf": [
        "3dm", 
        "3dmf", 
        "qd3", 
        "qd3d"
    ], 
    "x-world/x-svr": [
        "svr"
    ], 
    "x-world/x-vrml": [
        "vrml", 
        "wrl", 
        "wrz"
    ], 
    "x-world/x-vrt": [
        "vrt"
    ], 
    "xgl/drawing": [
        "xgz"
    ], 
    "xgl/movie": [
        "xmz"
    ]
}

perl code to convert https://gist.github.com/nimasdj/801b0b1a50112ea6a997 to this json format:
https://gist.github.com/bj4rtmar/19c367486d2da5b5f1b9

Keys and values reversed (file extension to list of mime types):
https://gist.github.com/bj4rtmar/3fc949de5fe73ed59ca5