怎样生成MIME类型为application⼀kset的xls文件

3gpvideo/3gpp　　aabapplication/x-authoware-bin　　aamapplication/x-authoware-map　　aasapplication/x-authoware-seg　　aiapplication/postscript　　aifaudio/x-aiff　　aifcaudio/x-aiff　　aiffaudio/x-aiff　　alsaudio/X-Alpha5　　amcapplication/x-mpeg　　aniapplication/octet-stream　　asctext/plain　　asdapplication/astound　　asfvideo/x-ms-asf　　asnapplication/astound　　aspapplication/x-asap　　asxvideo/x-ms-asf　　auaudio/basic　　avbapplication/octet-stream　　avivideo/x-msvideo　　awbaudio/amr-wb　　bcpioapplication/x-bcpio　　binapplication/octet-stream　　bldapplication/bld　　bld2application/bld2　　bmpapplication/x-MS-bmp　　bpkapplication/octet-stream　　bz2application/x-bzip2　　calimage/x-cals　　ccnapplication/x-cnc　　ccoapplication/x-cocoa　　cdfapplication/x-netcdf　　cgimagnus-internal/cgi　　chatapplication/x-chat　　classapplication/octet-stream　　clpapplication/x-msclip　　cmxapplication/x-cmx　　coapplication/x-cult3d-object　　codimage/cis-cod　　cpioapplication/x-cpio　　cptapplication/mac-compactpro　　crdapplication/x-mscardfile　　cshapplication/x-csh　　csmchemical/x-csml　　csmlchemical/x-csml　　csstext/css　　curapplication/octet-stream　　dcmx-lml/x-evm　　dcrapplication/x-director　　dcximage/x-dcx　　dhtmltext/html　　dirapplication/x-director　　dllapplication/octet-stream　　dmgapplication/octet-stream　　dmsapplication/octet-stream　　docapplication/msword　　dotapplication/x-dot　　dviapplication/x-dvi　　dwfdrawing/x-dwf　　dwgapplication/x-autocad　　dxfapplication/x-autocad　　dxrapplication/x-director　　ebkapplication/x-expandedbook　　embchemical/x-embl-dl-nucleotide　　emblchemical/x-embl-dl-nucleotide　　epsapplication/postscript　　epubapplication/epub+zip　　eriimage/x-eri　　esaudio/echospeech　　eslaudio/echospeech　　etcapplication/x-earthtime　　etxtext/x-setext　　evmx-lml/x-evm　　evyapplication/x-envoy　　exeapplication/octet-stream　　fh4image/x-freehand　　fh5image/x-freehand　　fhcimage/x-freehand　　fifimage/fif　　fmapplication/x-maker　　fpximage/x-fpx　　fvivideo/isivideo　　gauchemical/x-gaussian-input　　gcaapplication/x-gca-compressed　　gdbx-lml/x-gdb　　gifimage/gif　　gpsapplication/x-gps　　gtarapplication/x-gtar　　gzapplication/x-gzip　　hdfapplication/x-hdf　　hdmtext/x-hdml　　hdmltext/x-hdml　　hlpapplication/winhlp　　hqxapplication/mac-binhex40　　htmtext/html　　htmltext/html　　htstext/html　　icex-conference/x-cooltalk　　icoapplication/octet-stream　　iefimage/ief　　ifmimage/gif　　ifsimage/ifs　　imyaudio/melody　　insapplication/x-NET-Install　　ipsapplication/x-ipscript　　ipxapplication/x-ipix　　itaudio/x-mod　　itzaudio/x-mod　　ivri-world/i-vrml　　j2kimage/j2k　　jadtext/vnd.sun.j2me.app-descriptor　　jamapplication/x-jam　　jarapplication/java-archive　　jnlpapplication/x-java-jnlp-file　　jpeimage/jpeg　　jpegimage/jpeg　　jpgimage/jpeg　　jpzimage/jpeg　　jsapplication/x-javascript　　jwcapplication/jwc　　kjxapplication/x-kjx　　lakx-lml/x-lak　　latexapplication/x-latex　　lccapplication/fastman　　lclapplication/x-digitalloca　　lcrapplication/x-digitalloca　　lghapplication/lgh　　lhaapplication/octet-stream　　lmlx-lml/x-lml　　lmlpackx-lml/x-lmlpack　　lsfvideo/x-ms-asf　　lsxvideo/x-ms-asf　　lzhapplication/x-lzh　　m13application/x-msmediaview　　m14application/x-msmediaview　　m15audio/x-mod　　m3uaudio/x-mpegurl　　m3urlaudio/x-mpegurl　　ma1audio/ma1　　ma2audio/ma2　　ma3audio/ma3　　ma5audio/ma5　　manapplication/x-troff-man　　mapmagnus-internal/imagemap　　mbdapplication/mbedlet　　mctapplication/x-mascot　　mdbapplication/x-msaccess　　mdzaudio/x-mod　　meapplication/x-troff-me　　meltext/x-vmel　　miapplication/x-mif　　midaudio/midi　　midiaudio/midi　　mifapplication/x-mif　　milimage/x-cals　　mioaudio/x-mio　　mmfapplication/x-skt-lbs　　mngvideo/x-mng　　mnyapplication/x-msmoney　　mocapplication/x-mocha　　mochaapplication/x-mocha　　modaudio/x-mod　　mofapplication/x-yumekara　　molchemical/x-mdl-molfile　　mopchemical/x-mopac-input　　movvideo/quicktime　　movievideo/x-sgi-movie　　mp2audio/x-mpeg　　mp3audio/x-mpeg　　mp4video/mp4　　mpcapplication/vnd.mpohun.certificate　　mpevideo/mpeg　　mpegvideo/mpeg　　mpgvideo/mpeg　　mpg4video/mp4　　mpgaaudio/mpeg　　mpnapplication/vnd.mophun.application　　mppapplication/vnd.ms-project　　mpsapplication/x-mapserver　　mrltext/x-mrml　　mrmapplication/x-mrm　　msapplication/x-troff-ms　　mtsapplication/metastream　　mtxapplication/metastream　　mtzapplication/metastream　　mzvapplication/metastream　　narapplication/zip　　nbmpimage/nbmp　　ncapplication/x-netcdf　　ndbx-lml/x-ndb　　ndwnapplication/ndwn　　nifapplication/x-nif　　nmzapplication/x-scream　　nokia-op-logoimage/vnd.nok-oplogo-color　　npxapplication/x-netfpx　　nsndaudio/nsnd　　nvaapplication/x-neva1　　odaapplication/oda　　oomapplication/x-AtlasMate-Plugin　　pacaudio/x-pac　　paeaudio/x-epac　　panapplication/x-pan　　pbmimage/x-portable-bitmap　　pcximage/x-pcx　　pdaimage/x-pda　　pdbchemical/x-pdb　　pdfapplication/pdf　　pfrapplication/font-tdpfr　　pgmimage/x-portable-graymap　　pictimage/x-pict　　pmapplication/x-perl　　pmdapplication/x-pmd　　pngimage/png　　pnmimage/x-portable-anymap　　pnzimage/png　　potapplication/vnd.ms-powerpoint　　ppmimage/x-portable-pixmap　　ppsapplication/vnd.ms-powerpoint　　pptapplication/vnd.ms-powerpoint　　pqfapplication/x-cprplayer　　pqiapplication/cprplayer　　prcapplication/x-prc　　proxyapplication/x-ns-proxy-autoconfig　　psapplication/postscript　　ptlkapplication/listenup　　pubapplication/x-mspublisher　　pvxvideo/x-pv-pvx　　qcpaudio/vnd.qcelp　　qtvideo/quicktime　　qtiimage/x-quicktime　　qtifimage/x-quicktime　　r3ttext/vnd.rn-realtext3d　　raaudio/x-pn-realaudio　　ramaudio/x-pn-realaudio　　rarapplication/octet-stream　　rasimage/x-cmu-raster　　rdfapplication/rdf+xml　　rfimage/vnd.rn-realflash　　rgbimage/x-rgb　　rlfapplication/x-richlink　　rmaudio/x-pn-realaudio　　rmfaudio/x-rmf　　rmmaudio/x-pn-realaudio　　rmvbaudio/x-pn-realaudio　　rnxapplication/vnd.rn-realplayer　　roffapplication/x-troff　　rpimage/vnd.rn-realpix　　rpmaudio/x-pn-realaudio-plugin　　rttext/vnd.rn-realtext　　rtex-lml/x-gps　　rtfapplication/rtf　　rtgapplication/metastream　　rtxtext/richtext　　rvvideo/vnd.rn-realvideo　　rwcapplication/x-rogerwilco　　s3maudio/x-mod　　s3zaudio/x-mod　　scaapplication/x-supercard　　scdapplication/x-msschedule　　sdfapplication/e-score　　seaapplication/x-stuffit　　sgmtext/x-sgml　　sgmltext/x-sgml　　shapplication/x-sh　　sharapplication/x-shar　　shtmlmagnus-internal/parsed-html　　shwapplication/presentations　　si6image/si6　　si7image/vnd.stiwap.sis　　si9image/vnd.lgtwap.sis　　sisapplication/vnd.symbian.install　　sitapplication/x-stuffit　　skdapplication/x-Koan　　skmapplication/x-Koan　　skpapplication/x-Koan　　sktapplication/x-Koan　　slcapplication/x-salsa　　smdaudio/x-smd　　smiapplication/smil　　smilapplication/smil　　smpapplication/studiom　　smzaudio/x-smd　　sndaudio/basic　　spctext/x-speech　　splapplication/futuresplash　　sprapplication/x-sprite　　spriteapplication/x-sprite　　sdpapplication/sdp　　sptapplication/x-spt　　srcapplication/x-wais-source　　stkapplication/hyperstudio　　stmaudio/x-mod　　sv4cpioapplication/x-sv4cpio　　sv4crcapplication/x-sv4crc　　svfimage/vnd　　svgimage/svg-xml　　svhimage/svh　　svrx-world/x-svr　　swfapplication/x-shockwave-flash　　swflapplication/x-shockwave-flash　　tapplication/x-troff　　tadapplication/octet-stream　　talktext/x-speech　　tarapplication/x-tar　　tazapplication/x-tar　　tbpapplication/x-timbuktu　　tbtapplication/x-timbuktu　　tclapplication/x-tcl　　texapplication/x-tex　　texiapplication/x-texinfo　　texinfoapplication/x-texinfo　　tgzapplication/x-tar　　thmapplication/vnd.eri.thm　　tifimage/tiff　　tiffimage/tiff　　tkiapplication/x-tkined　　tkinedapplication/x-tkined　　tocapplication/toc　　toyimage/toy　　trapplication/x-troff　　trkx-lml/x-gps　　trmapplication/x-msterminal　　tsiaudio/tsplayer　　tspapplication/dsptype　　tsvtext/tab-separated-values　　ttfapplication/octet-stream　　ttzapplication/t-time　　txttext/plain　　ultaudio/x-mod　　ustarapplication/x-ustar　　uuapplication/x-uuencode　　uueapplication/x-uuencode　　vcdapplication/x-cdlink　　vcftext/x-vcard　　vdovideo/vdo　　vibaudio/vib　　vivvideo/vivo　　vivovideo/vivo　　vmdapplication/vocaltec-media-desc　　vmfapplication/vocaltec-media-file　　vmiapplication/x-dreamcast-vms-info　　vmsapplication/x-dreamcast-vms　　voxaudio/voxware　　vqeaudio/x-twinvq-plugin　　vqfaudio/x-twinvq　　vqlaudio/x-twinvq　　vrex-world/x-vream　　vrmlx-world/x-vrml　　vrtx-world/x-vrt　　vrwx-world/x-vream　　vtsworkbook/formulaone　　wavaudio/x-wav　　waxaudio/x-ms-wax　　wbmpimage/vnd.wap.wbmp　　webapplication/vnd.xara　　wiimage/wavelet　　wisapplication/x-InstallShield　　wmvideo/x-ms-wm　　wmaaudio/x-ms-wma　　wmdapplication/x-ms-wmd　　wmfapplication/x-msmetafile　　wmltext/vnd.wap.wml　　wmlcapplication/vnd.wap.wmlc　　wmlstext/vnd.wap.wmlscript　　wmlscapplication/vnd.wap.wmlscriptc　　wmlscripttext/vnd.wap.wmlscript　　wmvvideo/x-ms-wmv　　wmxvideo/x-ms-wmx　　wmzapplication/x-ms-wmz　　wpngimage/x-up-wpng　　wptx-lml/x-gps　　wriapplication/x-mswrite　　wrlx-world/x-vrml　　wrzx-world/x-vrml　　wstext/vnd.wap.wmlscript　　wscapplication/vnd.wap.wmlscriptc　　wvvideo/wavelet　　wvxvideo/x-ms-wvx　　wxlapplication/x-wxl　　x-gzipapplication/x-gzip　　xarapplication/vnd.xara　　xbmimage/x-xbitmap　　xdmapplication/x-xdma　　xdmaapplication/x-xdma　　xdwapplication/vnd.fujixerox.docuworks　　xhtapplication/xhtml+xml　　xhtmapplication/xhtml+xml　　xhtmlapplication/xhtml+xml　　xlaapplication/vnd.ms-excel　　xlcapplication/vnd.ms-excel　　xllapplication/x-excel　　xlmapplication/vnd.ms-excel　　xlsapplication/vnd.ms-excel　　xltapplication/vnd.ms-excel　　xlwapplication/vnd.ms-excel　　xmaudio/x-mod　　xmltext/xml　　xmzaudio/x-mod　　xpiapplication/x-xpinstall　　xpmimage/x-xpixmap　　xsittext/xml　　xsltext/xml　　xultext/xul　　xwdimage/x-xwindowdump　　xyzchemical/x-pdb　　yz1application/x-yz1　　zapplication/x-compress　　zacapplication/x-zaurus-zac　　zipapplication/zip