HTML实现在线预览Excel,word,ppt

使用 office 提供的在线预览功能 https://view.officeapps.live….src 后面接你需要预览的文件下载地址. 如果不能实现预览功能, 提示报错请检查 http 返回的 Content-Type 是否正确
当从浏览器返回一个文件时, 需要指定 ContentType, 以下是 Office2007 对应的值:”application/vnd.openxmlformats-officedocument.wordprocessingml.template” (for .dotx files)”application/vnd.openxmlformats-officedocument.presentationml.presentation” (for .pptx files)”application/vnd.openxmlformats-officedocument.presentationml.slideshow” (for .ppsx files)”application/vnd.openxmlformats-officedocument.presentationml.template” (for .potx files)”application/vnd.openxmlformats-officedocument.spreadsheetml.sheet” (for .xlsx files)”application/vnd.openxmlformats-officedocument.spreadsheetml.template” (for .xltx files)
参考链接:
https://www.cnblogs.com/huang…office 在线预览文档: https://products.office.com/z…office 文件对应的 contentType: https://www.cnblogs.com/diony…
bug 解决记录:
原来网站中有个需要, 是下载 Excel. 最开始实现的时候, 是使用 jsreport 来实现, 但是该服务收费, 并且由于功能太强大了, 学习成本高.
因为我们只是想要下载 Excel, 后面就找了 Excel.js 这个库来实现.
下载 Excel 是没问题, 生成文件流以后,, 直接返回 steam, 有一天, 领导说, 需要在线预览 Excel???? 考虑过几种方案,

自己实现解析 Excel, 直接以表格的样式返回 HTML
找第三方 js 库, 来实现 Excel 预览,
其他 (尽可能少改动现有代码)

在找其他方案的时候, 发现, 其他 Microsoft Office365 提供了在线预览的功能, 只需要 https://view.officeapps.live….src 后面跟上 Excel 的下载地址就行.
但是测试了一下, 发现并不能成功. 因为我们服务器上通过接口下载 Excel 的 URL 拼接在上面 src 后面, 不能预览, 会报错.
但是, 如果是访问静态资源目录, 拼接在 src 后面, 是可以的. 比如: http://a.com/excel.xlsx 可以在线预览 https://a.com/download/report… 不能在线预览我就怀疑是 response Header 设置问题, 但是, 不清楚具体是哪个配置项.
最开始以为是 https 的问题, 但是测试后发现, 与 https 无关,https 和 http 协议都能在线预览也考虑过是不是 URL 上没用后缀, 导致 office 无法识别该文件是什么类型, 但是下载保存的时候, 会自动识别出对应的文件后缀名, 所以就肯定不是 URL 上没有后缀名导致的问题. 服务器后端使用的是 Node.js, 框架用的是 express, 如果将 Excel 放置在静态资源文件目录下, 是能正常预览. 如果是将文件放在静态资源文件夹下访问, 等同于调用 express 中的 res.sendFile(filePath) 方法. 我们的接口中, 使用
res.set({
‘Content-Disposition’: ‘Attachment; filename=”report.xlsx’
});
来设置 response 的 header, 保证用户下载文件后存储到本地时默认是 Excel 后缀.
好, 因为基础知识不牢, 只能去查看 express 的源码中 sendFile() 方法有什么奥秘了 node_modules/express/lib/response.js
res.sendFile = function sendFile(path, options, callback) {
var done = callback;
var req = this.req;
var res = this;
var next = req.next;
var opts = options || {};

if (!path) {
throw new TypeError(‘path argument is required to res.sendFile’);
}

// support function as second arg
if (typeof options === ‘function’) {
done = options;
opts = {};
}

if (!opts.root && !isAbsolute(path)) {
throw new TypeError(‘path must be absolute or specify root to res.sendFile’);
}

// create file stream
var pathname = encodeURI(path);
var file = send(req, pathname, opts);

// transfer
sendfile(res, file, opts, function (err) {
if (done) return done(err);
if (err && err.code === ‘EISDIR’) return next();

// next() all but write errors
if (err && err.code !== ‘ECONNABORTED’ && err.syscall !== ‘write’) {
next(err);
}
});
};
可以看到, 实际上 sendFile 调用的是 node_modules/send/index.js 方法, 在看 send 模块中的代码, 发现
var mime = require(‘mime’)

SendStream.prototype.type = function type (path) {
var res = this.res

if (res.getHeader(‘Content-Type’)) return

var type = mime.lookup(path)

if (!type) {
debug(‘no content-type’)
return
}

var charset = mime.charsets.lookup(type)

debug(‘content-type %s’, type)
res.setHeader(‘Content-Type’, type + (charset ? ‘; charset=’ + charset : ”))
}
express 在发送文件时, 会调用上述代码, 根据后缀名来获取 Content-Type. 在查看 mime 的源码, 会发现在 mime 中,require 了一个 type.json, 而 type.json 就是各种后缀名对应的 content-type
因为我们原来的代码中, 只设置了 Content-Disposition, 代表该请求返回的是一个文件. 但是 office365 实际上是通过 Content-Type 来获取, 当前需要预览的是什么类型的文件 (word,ppt,Excel), 所以, 需要设置对应的 Content-Type 才能正确实现预览功能
mime 库中 type.json 中后缀名对应的 ContentType, 可以用来做速查表
{
“application/andrew-inset”: [
“ez”
],
“application/applixware”: [
“aw”
],
“application/atom+xml”: [
“atom”
],
“application/atomcat+xml”: [
“atomcat”
],
“application/atomsvc+xml”: [
“atomsvc”
],
“application/bdoc”: [
“bdoc”
],
“application/ccxml+xml”: [
“ccxml”
],
“application/cdmi-capability”: [
“cdmia”
],
“application/cdmi-container”: [
“cdmic”
],
“application/cdmi-domain”: [
“cdmid”
],
“application/cdmi-object”: [
“cdmio”
],
“application/cdmi-queue”: [
“cdmiq”
],
“application/cu-seeme”: [
“cu”
],
“application/dash+xml”: [
“mpd”
],
“application/davmount+xml”: [
“davmount”
],
“application/docbook+xml”: [
“dbk”
],
“application/dssc+der”: [
“dssc”
],
“application/dssc+xml”: [
“xdssc”
],
“application/ecmascript”: [
“ecma”
],
“application/emma+xml”: [
“emma”
],
“application/epub+zip”: [
“epub”
],
“application/exi”: [
“exi”
],
“application/font-tdpfr”: [
“pfr”
],
“application/font-woff”: [
“woff”
],
“application/font-woff2”: [
“woff2”
],
“application/geo+json”: [
“geojson”
],
“application/gml+xml”: [
“gml”
],
“application/gpx+xml”: [
“gpx”
],
“application/gxf”: [
“gxf”
],
“application/gzip”: [
“gz”
],
“application/hyperstudio”: [
“stk”
],
“application/inkml+xml”: [
“ink”,
“inkml”
],
“application/ipfix”: [
“ipfix”
],
“application/java-archive”: [
“jar”,
“war”,
“ear”
],
“application/java-serialized-object”: [
“ser”
],
“application/java-vm”: [
“class”
],
“application/javascript”: [
“js”,
“mjs”
],
“application/json”: [
“json”,
“map”
],
“application/json5”: [
“json5”
],
“application/jsonml+json”: [
“jsonml”
],
“application/ld+json”: [
“jsonld”
],
“application/lost+xml”: [
“lostxml”
],
“application/mac-binhex40”: [
“hqx”
],
“application/mac-compactpro”: [
“cpt”
],
“application/mads+xml”: [
“mads”
],
“application/manifest+json”: [
“webmanifest”
],
“application/marc”: [
“mrc”
],
“application/marcxml+xml”: [
“mrcx”
],
“application/mathematica”: [
“ma”,
“nb”,
“mb”
],
“application/mathml+xml”: [
“mathml”
],
“application/mbox”: [
“mbox”
],
“application/mediaservercontrol+xml”: [
“mscml”
],
“application/metalink+xml”: [
“metalink”
],
“application/metalink4+xml”: [
“meta4”
],
“application/mets+xml”: [
“mets”
],
“application/mods+xml”: [
“mods”
],
“application/mp21”: [
“m21”,
“mp21”
],
“application/mp4”: [
“mp4s”,
“m4p”
],
“application/msword”: [
“doc”,
“dot”
],
“application/mxf”: [
“mxf”
],
“application/octet-stream”: [
“bin”,
“dms”,
“lrf”,
“mar”,
“so”,
“dist”,
“distz”,
“pkg”,
“bpk”,
“dump”,
“elc”,
“deploy”,
“exe”,
“dll”,
“deb”,
“dmg”,
“iso”,
“img”,
“msi”,
“msp”,
“msm”,
“buffer”
],
“application/oda”: [
“oda”
],
“application/oebps-package+xml”: [
“opf”
],
“application/ogg”: [
“ogx”
],
“application/omdoc+xml”: [
“omdoc”
],
“application/onenote”: [
“onetoc”,
“onetoc2”,
“onetmp”,
“onepkg”
],
“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/pkcs10”: [
“p10”
],
“application/pkcs7-mime”: [
“p7m”,
“p7c”
],
“application/pkcs7-signature”: [
“p7s”
],
“application/pkcs8”: [
“p8”
],
“application/pkix-attr-cert”: [
“ac”
],
“application/pkix-cert”: [
“cer”
],
“application/pkix-crl”: [
“crl”
],
“application/pkix-pkipath”: [
“pkipath”
],
“application/pkixcmp”: [
“pki”
],
“application/pls+xml”: [
“pls”
],
“application/postscript”: [
“ai”,
“eps”,
“ps”
],
“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/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”
],
“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/set-payment-initiation”: [
“setpay”
],
“application/set-registration-initiation”: [
“setreg”
],
“application/shf+xml”: [
“shf”
],
“application/smil+xml”: [
“smi”,
“smil”
],
“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/tei+xml”: [
“tei”,
“teicorpus”
],
“application/thraud+xml”: [
“tfi”
],
“application/timestamped-data”: [
“tsd”
],
“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”: [
“atc”,
“acutc”
],
“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.apple.mpegurl”: [
“m3u8”
],
“application/vnd.apple.pkpass”: [
“pkpass”
],
“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”: [
“c4g”,
“c4d”,
“c4f”,
“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”: [
“uvf”,
“uvvf”,
“uvd”,
“uvvd”
],
“application/vnd.dece.ttml+xml”: [
“uvt”,
“uvvt”
],
“application/vnd.dece.unspecified”: [
“uvx”,
“uvvx”
],
“application/vnd.dece.zip”: [
“uvz”,
“uvvz”
],
“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”: [
“seed”,
“dataless”
],
“application/vnd.flographit”: [
“gph”
],
“application/vnd.fluxtime.clip”: [
“ftc”
],
“application/vnd.framemaker”: [
“fm”,
“frame”,
“maker”,
“book”
],
“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-apps.document”: [
“gdoc”
],
“application/vnd.google-apps.presentation”: [
“gslides”
],
“application/vnd.google-apps.spreadsheet”: [
“gsheet”
],
“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”: [
“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”,
“listafp”,
“list3820”
],
“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”
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“application/x-wais-source”: [
“src”
],
“application/x-web-app-manifest+json”: [
“webapp”
],
“application/x-x509-ca-cert”: [
“der”,
“crt”,
“pem”
],
“application/x-xfig”: [
“fig”
],
“application/x-xliff+xml”: [
“xlf”
],
“application/x-xpinstall”: [
“xpi”
],
“application/x-xz”: [
“xz”
],
“application/x-zmachine”: [
“z1”,
“z2”,
“z3”,
“z4”,
“z5”,
“z6”,
“z7”,
“z8”
],
“application/xaml+xml”: [
“xaml”
],
“application/xcap-diff+xml”: [
“xdf”
],
“application/xenc+xml”: [
“xenc”
],
“application/xhtml+xml”: [
“xhtml”,
“xht”
],
“application/xml”: [
“xml”,
“xsl”,
“xsd”,
“rng”
],
“application/xml-dtd”: [
“dtd”
],
“application/xop+xml”: [
“xop”
],
“application/xproc+xml”: [
“xpl”
],
“application/xslt+xml”: [
“xslt”
],
“application/xspf+xml”: [
“xspf”
],
“application/xv+xml”: [
“mxml”,
“xhvml”,
“xvml”,
“xvm”
],
“application/yang”: [
“yang”
],
“application/yin+xml”: [
“yin”
],
“application/zip”: [
“zip”
],
“audio/3gpp”: [
“3gpp”
],
“audio/adpcm”: [
“adp”
],
“audio/basic”: [
“au”,
“snd”
],
“audio/midi”: [
“mid”,
“midi”,
“kar”,
“rmi”
],
“audio/mp3”: [
“mp3”
],
“audio/mp4”: [
“m4a”,
“mp4a”
],
“audio/mpeg”: [
“mpga”,
“mp2”,
“mp2a”,
“mp3”,
“m2a”,
“m3a”
],
“audio/ogg”: [
“oga”,
“ogg”,
“spx”
],
“audio/s3m”: [
“s3m”
],
“audio/silk”: [
“sil”
],
“audio/vnd.dece.audio”: [
“uva”,
“uvva”
],
“audio/vnd.digital-winds”: [
“eol”
],
“audio/vnd.dra”: [
“dra”
],
“audio/vnd.dts”: [
“dts”
],
“audio/vnd.dts.hd”: [
“dtshd”
],
“audio/vnd.lucent.voice”: [
“lvp”
],
“audio/vnd.ms-playready.media.pya”: [
“pya”
],
“audio/vnd.nuera.ecelp4800”: [
“ecelp4800”
],
“audio/vnd.nuera.ecelp7470”: [
“ecelp7470”
],
“audio/vnd.nuera.ecelp9600”: [
“ecelp9600”
],
“audio/vnd.rip”: [
“rip”
],
“audio/wav”: [
“wav”
],
“audio/wave”: [
“wav”
],
“audio/webm”: [
“weba”
],
“audio/x-aac”: [
“aac”
],
“audio/x-aiff”: [
“aif”,
“aiff”,
“aifc”
],
“audio/x-caf”: [
“caf”
],
“audio/x-flac”: [
“flac”
],
“audio/x-m4a”: [
“m4a”
],
“audio/x-matroska”: [
“mka”
],
“audio/x-mpegurl”: [
“m3u”
],
“audio/x-ms-wax”: [
“wax”
],
“audio/x-ms-wma”: [
“wma”
],
“audio/x-pn-realaudio”: [
“ram”,
“ra”
],
“audio/x-pn-realaudio-plugin”: [
“rmp”
],
“audio/x-realaudio”: [
“ra”
],
“audio/x-wav”: [
“wav”
],
“audio/xm”: [
“xm”
],
“chemical/x-cdx”: [
“cdx”
],
“chemical/x-cif”: [
“cif”
],
“chemical/x-cmdf”: [
“cmdf”
],
“chemical/x-cml”: [
“cml”
],
“chemical/x-csml”: [
“csml”
],
“chemical/x-xyz”: [
“xyz”
],
“font/otf”: [
“otf”
],
“image/apng”: [
“apng”
],
“image/bmp”: [
“bmp”
],
“image/cgm”: [
“cgm”
],
“image/g3fax”: [
“g3”
],
“image/gif”: [
“gif”
],
“image/ief”: [
“ief”
],
“image/jpeg”: [
“jpeg”,
“jpg”,
“jpe”
],
“image/ktx”: [
“ktx”
],
“image/png”: [
“png”
],
“image/prs.btif”: [
“btif”
],
“image/sgi”: [
“sgi”
],
“image/svg+xml”: [
“svg”,
“svgz”
],
“image/tiff”: [
“tiff”,
“tif”
],
“image/vnd.adobe.photoshop”: [
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],
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“uvvi”,
“uvg”,
“uvvg”
],
“image/vnd.djvu”: [
“djvu”,
“djv”
],
“image/vnd.dvb.subtitle”: [
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],
“image/vnd.dwg”: [
“dwg”
],
“image/vnd.dxf”: [
“dxf”
],
“image/vnd.fastbidsheet”: [
“fbs”
],
“image/vnd.fpx”: [
“fpx”
],
“image/vnd.fst”: [
“fst”
],
“image/vnd.fujixerox.edmics-mmr”: [
“mmr”
],
“image/vnd.fujixerox.edmics-rlc”: [
“rlc”
],
“image/vnd.ms-modi”: [
“mdi”
],
“image/vnd.ms-photo”: [
“wdp”
],
“image/vnd.net-fpx”: [
“npx”
],
“image/vnd.wap.wbmp”: [
“wbmp”
],
“image/vnd.xiff”: [
“xif”
],
“image/webp”: [
“webp”
],
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“3ds”
],
“image/x-cmu-raster”: [
“ras”
],
“image/x-cmx”: [
“cmx”
],
“image/x-freehand”: [
“fh”,
“fhc”,
“fh4”,
“fh5”,
“fh7”
],
“image/x-icon”: [
“ico”
],
“image/x-jng”: [
“jng”
],
“image/x-mrsid-image”: [
“sid”
],
“image/x-ms-bmp”: [
“bmp”
],
“image/x-pcx”: [
“pcx”
],
“image/x-pict”: [
“pic”,
“pct”
],
“image/x-portable-anymap”: [
“pnm”
],
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“pbm”
],
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“pgm”
],
“image/x-portable-pixmap”: [
“ppm”
],
“image/x-rgb”: [
“rgb”
],
“image/x-tga”: [
“tga”
],
“image/x-xbitmap”: [
“xbm”
],
“image/x-xpixmap”: [
“xpm”
],
“image/x-xwindowdump”: [
“xwd”
],
“message/rfc822”: [
“eml”,
“mime”
],
“model/gltf+json”: [
“gltf”
],
“model/gltf-binary”: [
“glb”
],
“model/iges”: [
“igs”,
“iges”
],
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“msh”,
“mesh”,
“silo”
],
“model/vnd.collada+xml”: [
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],
“model/vnd.dwf”: [
“dwf”
],
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“gdl”
],
“model/vnd.gtw”: [
“gtw”
],
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“mts”
],
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“vtu”
],
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“wrl”,
“vrml”
],
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“x3dbz”
],
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“x3dv”,
“x3dvz”
],
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“x3d”,
“x3dz”
],
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“appcache”,
“manifest”
],
“text/calendar”: [
“ics”,
“ifb”
],
“text/coffeescript”: [
“coffee”,
“litcoffee”
],
“text/css”: [
“css”
],
“text/csv”: [
“csv”
],
“text/hjson”: [
“hjson”
],
“text/html”: [
“html”,
“htm”,
“shtml”
],
“text/jade”: [
“jade”
],
“text/jsx”: [
“jsx”
],
“text/less”: [
“less”
],
“text/markdown”: [
“markdown”,
“md”
],
“text/mathml”: [
“mml”
],
“text/n3”: [
“n3”
],
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“txt”,
“text”,
“conf”,
“def”,
“list”,
“log”,
“in”,
“ini”
],
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],
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“rtx”
],
“text/rtf”: [
“rtf”
],
“text/sgml”: [
“sgml”,
“sgm”
],
“text/slim”: [
“slim”,
“slm”
],
“text/stylus”: [
“stylus”,
“styl”
],
“text/tab-separated-values”: [
“tsv”
],
“text/troff”: [
“t”,
“tr”,
“roff”,
“man”,
“me”,
“ms”
],
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“ttl”
],
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“uri”,
“uris”,
“urls”
],
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“vcard”
],
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“curl”
],
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“dcurl”
],
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“mcurl”
],
“text/vnd.curl.scurl”: [
“scurl”
],
“text/vnd.dvb.subtitle”: [
“sub”
],
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“fly”
],
“text/vnd.fmi.flexstor”: [
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],
“text/vnd.graphviz”: [
“gv”
],
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],
“text/vnd.in3d.spot”: [
“spot”
],
“text/vnd.sun.j2me.app-descriptor”: [
“jad”
],
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“wml”
],
“text/vnd.wap.wmlscript”: [
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],
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“vtt”
],
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“asm”
],
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“cc”,
“cxx”,
“cpp”,
“h”,
“hh”,
“dic”
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“for”,
“f77”,
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],
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],
“text/x-java-source”: [
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],
“text/x-lua”: [
“lua”
],
“text/x-markdown”: [
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],
“text/x-nfo”: [
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],
“text/x-opml”: [
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],
“text/x-org”: [
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],
“text/x-pascal”: [
“p”,
“pas”
],
“text/x-processing”: [
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],
“text/x-sass”: [
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],
“text/x-scss”: [
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],
“text/x-setext”: [
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],
“text/x-sfv”: [
“sfv”
],
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],
“text/x-uuencode”: [
“uu”
],
“text/x-vcalendar”: [
“vcs”
],
“text/x-vcard”: [
“vcf”
],
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“xml”
],
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“yaml”,
“yml”
],
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“3gp”,
“3gpp”
],
“video/3gpp2”: [
“3g2”
],
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“h261”
],
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],
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“h264”
],
“video/jpeg”: [
“jpgv”
],
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“jpm”,
“jpgm”
],
“video/mj2”: [
“mj2”,
“mjp2”
],
“video/mp2t”: [
“ts”
],
“video/mp4”: [
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“mp4v”,
“mpg4”
],
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“mpg”,
“mpe”,
“m1v”,
“m2v”
],
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“ogv”
],
“video/quicktime”: [
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“mov”
],
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“uvvh”
],
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“uvvm”
],
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“uvvp”
],
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“uvvs”
],
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“uvvv”
],
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],
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],
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“m4u”
],
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“pyv”
],
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“uvvu”
],
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],
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],
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],
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],
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],
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“mk3d”,
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],
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“asx”
],
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],
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],
“video/x-msvideo”: [
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],
“video/x-sgi-movie”: [
“movie”
],
“video/x-smv”: [
“smv”
],
“x-conference/x-cooltalk”: [
“ice”
]
}