Internet Protocol version 6 (IPv6)

Wednesday, November 4, 2009

Internet Protocol version 6 (IPv6) is the next-generation Internet Protocol version designated as the successor to IPv4, the first implementation used in the Internet and still in dominant use currently. It is an Internet Layer protocol for packet-switched internetworks. The main driving force for the redesign of Internet Protocol was the foreseeable IPv4 address exhaustion. IPv6 was defined in December 1998 by the Internet Engineering Task Force (IETF) with the publication of an Internet standard specification, RFC 2460.



IPv6 has a vastly larger address space than IPv4. This results from the use of a 128-bit address, whereas IPv4 uses only 32 bits. The new address space thus supports 2128 (about 3.4×1038) addresses. This expansion provides flexibility in allocating addresses and routing traffic and eliminates the primary need for network address translation (NAT), which gained widespread deployment as an effort to alleviate IPv4 address exhaustion.


IPv6 also implements new features that simplify aspects of address assignment (stateless address autoconfiguration) and network renumbering (prefix and router announcements) when changing Internet connectivity providers. The IPv6 subnet size has been standardized by fixing the size of the host identifier portion of an address to 64 bits to facilitate an automatic mechanism for forming the host identifier from Link Layer media addressing information (MAC address).


Network security is integrated into the design of the IPv6 architecture. Internet Protocol Security (IPsec) was originally developed for IPv6, but found widespread optional deployment first in IPv4 (into which it was back-engineered). The IPv6 specifications mandate IPsec implementation as a fundamental interoperability requirement.


In December 2008, despite marking its 10th anniversary as a Standards Track protocol, IPv6 was only in its infancy in terms of general worldwide deployment. A 2008 study by Google Inc. indicated that penetration was still less than one percent of Internet-enabled hosts in any country. IPv6 has been implemented on all major operating systems in use in commercial, business, and home consumer environments.

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Google Chrome Short Cut Keys

Tuesday, September 1, 2009

Ctrl+N
Open a new window
Ctrl+Shift+N
Open a new window in incognito mode
Press Ctrl, and click a link
Open link in a new tab
Press Shift, and click a link
Open link in a new window
Alt+F4
Close current window
Ctrl+T
Open a new tab
Ctrl+Shift+T
Reopen the last tab you’ve closed. Google Chrome remembers the last 10 tabs you’ve closed.
Drag link to tab
Open link in specified tab
Drag link to space between tabs
Open link in a new tab in the specified position on the tab strip
Ctrl+1 through Ctrl+8
Switch to the tab at the specified position number. The number you press represents a position on the tab strip.
Ctrl+9
Switch to the last tab
Ctrl+Tab or Ctrl+PgDown
Switch to the next tab
Ctrl+Shift+Tab orCtrl+PgUp
Switch to the previous tab
Ctrl+W or Ctrl+F4
Close current tab or pop-up
Alt+Home
Open your homepage
Ctrl+O, then select file
Open a file from your computer in Google Chrome
Type a search term
Perform a search using your default search engine
Type the part of the web address that’s between ‘www.’ and ‘.com’, then press Ctrl+Enter
Add www.and .com to your input in the address bar and open the web address
Type a search engine keyword or URL, press Tab, then type a search term
Perform a search using the search engine associated with the keyword or the URL. Google Chrome prompts you to press Tab if it recognizes the search engine you’re trying to use.
F6 or Ctrl+L or Alt+D
Highlight content in the web address area
Type a web address, then press Alt+Enter
Open your web address in a new tab
Ctrl+B
Toggle bookmarks bar on and off
Ctrl+H
View the History page
Ctrl+J
View the Downloads page
Shift+Escape
View the Task manager
Ctrl+P
Print your current page
F5
Reload current page
Esc
Stop page loading
Ctrl+F5 or Shift+F5
Reload current page, ignoring cached content
Press Alt, and click a link
Download link
Ctrl+F
Open find-in-page box
Ctrl+G or F3
Find next match for your input in the find-in-page box
Ctrl+Shift+G or Shift+F3
Find previous match for your input in the find-in-page box
Ctrl+U
View source
Drag link to bookmarks bar
Bookmark the link
Ctrl+D
Bookmark your current webpage
Ctrl++
Make text larger
Ctrl+-
Make text smaller
Ctrl+0
Return to normal text size
Highlight content, then press Ctrl+C
Copy content to the clipboard
Place your cursor in a text field, then press Ctrl+V or Shift+Insert
Paste current content from the clipboard
Place your cursor in a text field, then press Ctrl+Shift+V
Paste current content from the clipboard without formatting
Highlight content in a text field, then press Ctrl+X or Shift+Delete
Delete the content and copy it to the clipboard
Backspace, or press Alt and the left arrow together
Go to the previous page in your browsing history for the tab
Shift+Backspace, or press Alt and the right arrow together
Go to the next page in your browsing history for the tab
Ctrl+K or Ctrl+E
Places a ‘?’ in the address bar. Type a search term after the ‘?’ to perform a search using your default search engine.
Place your cursor in the address bar, then press Ctrl and the left arrow together
Jump to the previous word in the address bar
Place your cursor in the address bar, then press Ctrl and the right arrow together
Jump to the next word in the address bar
Place your cursor in the address bar, then press Ctrl+Backspace
Delete the previous word in the address bar
Space bar
Scroll down the web page
Home
Go to the top of the page
End
Go to the bottom of the page

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Mime Types

Monday, August 31, 2009

ExtensionMIME type
.3dmx-world/x-3dmf
.3dmfx-world/x-3dmf
.aapplication/octet-stream
.aabapplication/x-authorware-bin
.aamapplication/x-authorware-map
.aasapplication/x-authorware-seg
.abctext/vnd.abc
.acgitext/html
.aflvideo/animaflex
.aiapplication/postscript
.aifaudio/aiff
.aifaudio/x-aiff
.aifcaudio/aiff
.aifcaudio/x-aiff
.aiffaudio/aiff
.aiffaudio/x-aiff
.aimapplication/x-aim
.aiptext/x-audiosoft-intra
.aniapplication/x-navi-animation
.aosapplication/x-nokia-9000-communicator-add-on-software
.apsapplication/mime
.arcapplication/octet-stream
.arjapplication/arj
.arjapplication/octet-stream
.artimage/x-jg
.asfvideo/x-ms-asf
.asmtext/x-asm
.asptext/asp
.asxapplication/x-mplayer2
.asxvideo/x-ms-asf
.asxvideo/x-ms-asf-plugin
.auaudio/basic
.auaudio/x-au
.aviapplication/x-troff-msvideo
.avivideo/avi
.avivideo/msvideo
.avivideo/x-msvideo
.avsvideo/avs-video
.bcpioapplication/x-bcpio
.binapplication/mac-binary
.binapplication/macbinary
.binapplication/octet-stream
.binapplication/x-binary
.binapplication/x-macbinary
.bmimage/bmp
.bmpimage/bmp
.bmpimage/x-windows-bmp
.booapplication/book
.bookapplication/book
.bozapplication/x-bzip2
.bshapplication/x-bsh
.bzapplication/x-bzip
.bz2application/x-bzip2
.ctext/plain
.ctext/x-c
.c++text/plain
.catapplication/vnd.ms-pki.seccat
.cctext/plain
.cctext/x-c
.ccadapplication/clariscad
.ccoapplication/x-cocoa
.cdfapplication/cdf
.cdfapplication/x-cdf
.cdfapplication/x-netcdf
.cerapplication/pkix-cert
.cerapplication/x-x509-ca-cert
.chaapplication/x-chat
.chatapplication/x-chat
.classapplication/java
.classapplication/java-byte-code
.classapplication/x-java-class
.comapplication/octet-stream
.comtext/plain
.conftext/plain
.cpioapplication/x-cpio
.cpptext/x-c
.cptapplication/mac-compactpro
.cptapplication/x-compactpro
.cptapplication/x-cpt
.crlapplication/pkcs-crl
.crlapplication/pkix-crl
.crtapplication/pkix-cert
.crtapplication/x-x509-ca-cert
.crtapplication/x-x509-user-cert
.cshapplication/x-csh
.cshtext/x-script.csh
.cssapplication/x-pointplus
.csstext/css
.cxxtext/plain
.dcrapplication/x-director
.deepvapplication/x-deepv
.deftext/plain
.derapplication/x-x509-ca-cert
.difvideo/x-dv
.dirapplication/x-director
.dlvideo/dl
.dlvideo/x-dl
.docapplication/msword
.dotapplication/msword
.dpapplication/commonground
.drwapplication/drafting
.dumpapplication/octet-stream
.dvvideo/x-dv
.dviapplication/x-dvi
.dwfdrawing/x-dwf (old)
.dwfmodel/vnd.dwf
.dwgapplication/acad
.dwgimage/vnd.dwg
.dwgimage/x-dwg
.dxfapplication/dxf
.dxfimage/vnd.dwg
.dxfimage/x-dwg
.dxrapplication/x-director
.eltext/x-script.elisp
.elcapplication/x-bytecode.elisp (compiled elisp)
.elcapplication/x-elc
.envapplication/x-envoy
.epsapplication/postscript
.esapplication/x-esrehber
.etxtext/x-setext
.evyapplication/envoy
.evyapplication/x-envoy
.exeapplication/octet-stream
.ftext/plain
.ftext/x-fortran
.f77text/x-fortran
.f90text/plain
.f90text/x-fortran
.fdfapplication/vnd.fdf
.fifapplication/fractals
.fifimage/fif
.flivideo/fli
.flivideo/x-fli
.floimage/florian
.flxtext/vnd.fmi.flexstor
.fmfvideo/x-atomic3d-feature
.fortext/plain
.fortext/x-fortran
.fpximage/vnd.fpx
.fpximage/vnd.net-fpx
.frlapplication/freeloader
.funkaudio/make
.gtext/plain
.g3image/g3fax
.gifimage/gif
.glvideo/gl
.glvideo/x-gl
.gsdaudio/x-gsm
.gsmaudio/x-gsm
.gspapplication/x-gsp
.gssapplication/x-gss
.gtarapplication/x-gtar
.gzapplication/x-compressed
.gzapplication/x-gzip
.gzipapplication/x-gzip
.gzipmultipart/x-gzip
.htext/plain
.htext/x-h
.hdfapplication/x-hdf
.helpapplication/x-helpfile
.hglapplication/vnd.hp-hpgl
.hhtext/plain
.hhtext/x-h
.hlbtext/x-script
.hlpapplication/hlp
.hlpapplication/x-helpfile
.hlpapplication/x-winhelp
.hpgapplication/vnd.hp-hpgl
.hpglapplication/vnd.hp-hpgl
.hqxapplication/binhex
.hqxapplication/binhex4
.hqxapplication/mac-binhex
.hqxapplication/mac-binhex40
.hqxapplication/x-binhex40
.hqxapplication/x-mac-binhex40
.htaapplication/hta
.htctext/x-component
.htmtext/html
.htmltext/html
.htmlstext/html
.htttext/webviewhtml
.htx text/html
.ice x-conference/x-cooltalk
.icoimage/x-icon
.idctext/plain
.iefimage/ief
.iefsimage/ief
.igesapplication/iges
.iges model/iges
.igsapplication/iges
.igsmodel/iges
.imaapplication/x-ima
.imapapplication/x-httpd-imap
.inf application/inf
.insapplication/x-internett-signup
.ip application/x-ip2
.isuvideo/x-isvideo
.itaudio/it
.ivapplication/x-inventor
.ivri-world/i-vrml
.ivyapplication/x-livescreen
.jam audio/x-jam
.javtext/plain
.javtext/x-java-source
.javatext/plain
.java text/x-java-source
.jcm application/x-java-commerce
.jfifimage/jpeg
.jfifimage/pjpeg
.jfif-tbnlimage/jpeg
.jpeimage/jpeg
.jpeimage/pjpeg
.jpegimage/jpeg
.jpegimage/pjpeg
.jpg image/jpeg
.jpg image/pjpeg
.jpsimage/x-jps
.js application/x-javascript
.jutimage/jutvision
.karaudio/midi
.karmusic/x-karaoke
.kshapplication/x-ksh
.kshtext/x-script.ksh
.la audio/nspaudio
.la audio/x-nspaudio
.lamaudio/x-liveaudio
.latex application/x-latex
.lhaapplication/lha
.lhaapplication/octet-stream
.lhaapplication/x-lha
.lhxapplication/octet-stream
.listtext/plain
.lmaaudio/nspaudio
.lmaaudio/x-nspaudio
.log text/plain
.lsp application/x-lisp
.lsp text/x-script.lisp
.lst text/plain
.lsxtext/x-la-asf
.ltxapplication/x-latex
.lzhapplication/octet-stream
.lzhapplication/x-lzh
.lzxapplication/lzx
.lzxapplication/octet-stream
.lzxapplication/x-lzx
.mtext/plain
.mtext/x-m
.m1vvideo/mpeg
.m2aaudio/mpeg
.m2vvideo/mpeg
.m3u audio/x-mpequrl
.manapplication/x-troff-man
.mapapplication/x-navimap
.martext/plain
.mbdapplication/mbedlet
.mc$application/x-magic-cap-package-1.0
.mcdapplication/mcad
.mcdapplication/x-mathcad
.mcfimage/vasa
.mcftext/mcf
.mcpapplication/netmc
.me application/x-troff-me
.mhtmessage/rfc822
.mhtmlmessage/rfc822
.midapplication/x-midi
.midaudio/midi
.midaudio/x-mid
.midaudio/x-midi
.midmusic/crescendo
.midx-music/x-midi
.midiapplication/x-midi
.midiaudio/midi
.midiaudio/x-mid
.midiaudio/x-midi
.midimusic/crescendo
.midix-music/x-midi
.mifapplication/x-frame
.mifapplication/x-mif
.mime message/rfc822
.mime www/mime
.mjfaudio/x-vnd.audioexplosion.mjuicemediafile
.mjpg video/x-motion-jpeg
.mmapplication/base64
.mmapplication/x-meme
.mmeapplication/base64
.modaudio/mod
.modaudio/x-mod
.moovvideo/quicktime
.movvideo/quicktime
.movievideo/x-sgi-movie
.mp2audio/mpeg
.mp2audio/x-mpeg
.mp2video/mpeg
.mp2video/x-mpeg
.mp2video/x-mpeq2a
.mp3audio/mpeg3
.mp3audio/x-mpeg-3
.mp3video/mpeg
.mp3video/x-mpeg
.mpaaudio/mpeg
.mpavideo/mpeg
.mpcapplication/x-project
.mpevideo/mpeg
.mpegvideo/mpeg
.mpgaudio/mpeg
.mpgvideo/mpeg
.mpgaaudio/mpeg
.mppapplication/vnd.ms-project
.mptapplication/x-project
.mpvapplication/x-project
.mpxapplication/x-project
.mrcapplication/marc
.msapplication/x-troff-ms
.mvvideo/x-sgi-movie
.myaudio/make
.mzzapplication/x-vnd.audioexplosion.mzz
.napimage/naplps
.naplpsimage/naplps
.ncapplication/x-netcdf
.ncmapplication/vnd.nokia.configuration-message
.nifimage/x-niff
.niffimage/x-niff
.nixapplication/x-mix-transfer
.nscapplication/x-conference
.nvdapplication/x-navidoc
.oapplication/octet-stream
.odaapplication/oda
.omcapplication/x-omc
.omcdapplication/x-omcdatamaker
.omcrapplication/x-omcregerator
.ptext/x-pascal
.p10application/pkcs10
.p10application/x-pkcs10
.p12application/pkcs-12
.p12application/x-pkcs12
.p7aapplication/x-pkcs7-signature
.p7capplication/pkcs7-mime
.p7capplication/x-pkcs7-mime
.p7mapplication/pkcs7-mime
.p7mapplication/x-pkcs7-mime
.p7rapplication/x-pkcs7-certreqresp
.p7sapplication/pkcs7-signature
.part application/pro_eng
.pastext/pascal
.pbm image/x-portable-bitmap
.pclapplication/vnd.hp-pcl
.pclapplication/x-pcl
.pctimage/x-pict
.pcximage/x-pcx
.pdbchemical/x-pdb
.pdfapplication/pdf
.pfunkaudio/make
.pfunkaudio/make.my.funk
.pgmimage/x-portable-graymap
.pgmimage/x-portable-greymap
.picimage/pict
.pictimage/pict
.pkgapplication/x-newton-compatible-pkg
.pkoapplication/vnd.ms-pki.pko
.pltext/plain
.pltext/x-script.perl
.plxapplication/x-pixclscript
.pmimage/x-xpixmap
.pmtext/x-script.perl-module
.pm4 application/x-pagemaker
.pm5application/x-pagemaker
.pngimage/png
.pnmapplication/x-portable-anymap
.pnmimage/x-portable-anymap
.potapplication/mspowerpoint
.potapplication/vnd.ms-powerpoint
.povmodel/x-pov
.ppaapplication/vnd.ms-powerpoint
.ppmimage/x-portable-pixmap
.ppsapplication/mspowerpoint
.ppsapplication/vnd.ms-powerpoint
.pptapplication/mspowerpoint
.pptapplication/powerpoint
.pptapplication/vnd.ms-powerpoint
.pptapplication/x-mspowerpoint
.ppzapplication/mspowerpoint
.preapplication/x-freelance
.prtapplication/pro_eng
.psapplication/postscript
.psdapplication/octet-stream
.pvupaleovu/x-pv
.pwz application/vnd.ms-powerpoint
.py text/x-script.phyton
.pyc applicaiton/x-bytecode.python
.qcp audio/vnd.qcelp
.qd3 x-world/x-3dmf
.qd3d x-world/x-3dmf
.qifimage/x-quicktime
.qtvideo/quicktime
.qtcvideo/x-qtc
.qtiimage/x-quicktime
.qtifimage/x-quicktime
.raaudio/x-pn-realaudio
.raaudio/x-pn-realaudio-plugin
.raaudio/x-realaudio
.ramaudio/x-pn-realaudio
.rasapplication/x-cmu-raster
.rasimage/cmu-raster
.rasimage/x-cmu-raster
.rastimage/cmu-raster
.rexx text/x-script.rexx
.rfimage/vnd.rn-realflash
.rgb image/x-rgb
.rmapplication/vnd.rn-realmedia
.rmaudio/x-pn-realaudio
.rmiaudio/mid
.rmm audio/x-pn-realaudio
.rmpaudio/x-pn-realaudio
.rmpaudio/x-pn-realaudio-plugin
.rngapplication/ringing-tones
.rngapplication/vnd.nokia.ringing-tone
.rnx application/vnd.rn-realplayer
.roffapplication/x-troff
.rp image/vnd.rn-realpix
.rpmaudio/x-pn-realaudio-plugin
.rttext/richtext
.rttext/vnd.rn-realtext
.rtfapplication/rtf
.rtfapplication/x-rtf
.rtftext/richtext
.rtxapplication/rtf
.rtxtext/richtext
.rvvideo/vnd.rn-realvideo
.stext/x-asm
.s3m audio/s3m
.savemeapplication/octet-stream
.sbk application/x-tbook
.scmapplication/x-lotusscreencam
.scmtext/x-script.guile
.scmtext/x-script.scheme
.scmvideo/x-scm
.sdmltext/plain
.sdp application/sdp
.sdp application/x-sdp
.sdrapplication/sounder
.seaapplication/sea
.seaapplication/x-sea
.setapplication/set
.sgm text/sgml
.sgm text/x-sgml
.sgmltext/sgml
.sgmltext/x-sgml
.shapplication/x-bsh
.shapplication/x-sh
.shapplication/x-shar
.shtext/x-script.sh
.sharapplication/x-bsh
.sharapplication/x-shar
.shtml text/html
.shtmltext/x-server-parsed-html
.sidaudio/x-psid
.sitapplication/x-sit
.sitapplication/x-stuffit
.skdapplication/x-koan
.skm application/x-koan
.skp application/x-koan
.skt application/x-koan
.sl application/x-seelogo
.smi application/smil
.smil application/smil
.sndaudio/basic
.sndaudio/x-adpcm
.solapplication/solids
.spc application/x-pkcs7-certificates
.spc text/x-speech
.splapplication/futuresplash
.sprapplication/x-sprite
.sprite application/x-sprite
.srcapplication/x-wais-source
.ssitext/x-server-parsed-html
.ssm application/streamingmedia
.sstapplication/vnd.ms-pki.certstore
.stepapplication/step
.stlapplication/sla
.stlapplication/vnd.ms-pki.stl
.stlapplication/x-navistyle
.stpapplication/step
.sv4cpioapplication/x-sv4cpio
.sv4crcapplication/x-sv4crc
.svfimage/vnd.dwg
.svfimage/x-dwg
.svrapplication/x-world
.svrx-world/x-svr
.swfapplication/x-shockwave-flash
.tapplication/x-troff
.talktext/x-speech
.tarapplication/x-tar
.tbkapplication/toolbook
.tbkapplication/x-tbook
.tclapplication/x-tcl
.tcltext/x-script.tcl
.tcshtext/x-script.tcsh
.texapplication/x-tex
.texiapplication/x-texinfo
.texinfoapplication/x-texinfo
.textapplication/plain
.texttext/plain
.tgzapplication/gnutar
.tgzapplication/x-compressed
.tifimage/tiff
.tifimage/x-tiff
.tiffimage/tiff
.tiffimage/x-tiff
.trapplication/x-troff
.tsiaudio/tsp-audio
.tspapplication/dsptype
.tspaudio/tsplayer
.tsvtext/tab-separated-values
.turbotimage/florian
.txttext/plain
.uiltext/x-uil
.unitext/uri-list
.unistext/uri-list
.unvapplication/i-deas
.uritext/uri-list
.uristext/uri-list
.ustarapplication/x-ustar
.ustarmultipart/x-ustar
.uuapplication/octet-stream
.uutext/x-uuencode
.uuetext/x-uuencode
.vcdapplication/x-cdlink
.vcstext/x-vcalendar
.vdaapplication/vda
.vdovideo/vdo
.vew application/groupwise
.vivvideo/vivo
.vivvideo/vnd.vivo
.vivovideo/vivo
.vivovideo/vnd.vivo
.vmd application/vocaltec-media-desc
.vmfapplication/vocaltec-media-file
.vocaudio/voc
.vocaudio/x-voc
.vosvideo/vosaic
.voxaudio/voxware
.vqeaudio/x-twinvq-plugin
.vqfaudio/x-twinvq
.vqlaudio/x-twinvq-plugin
.vrmlapplication/x-vrml
.vrmlmodel/vrml
.vrmlx-world/x-vrml
.vrtx-world/x-vrt
.vsdapplication/x-visio
.vstapplication/x-visio
.vsw application/x-visio
.w60application/wordperfect6.0
.w61application/wordperfect6.1
.w6wapplication/msword
.wavaudio/wav
.wavaudio/x-wav
.wb1application/x-qpro
.wbmpimage/vnd.wap.wbmp
.webapplication/vnd.xara
.wizapplication/msword
.wk1application/x-123
.wmfwindows/metafile
.wmltext/vnd.wap.wml
.wmlc application/vnd.wap.wmlc
.wmlstext/vnd.wap.wmlscript
.wmlsc application/vnd.wap.wmlscriptc
.word application/msword
.wpapplication/wordperfect
.wp5application/wordperfect
.wp5application/wordperfect6.0
.wp6 application/wordperfect
.wpdapplication/wordperfect
.wpdapplication/x-wpwin
.wq1application/x-lotus
.wriapplication/mswrite
.wriapplication/x-wri
.wrlapplication/x-world
.wrlmodel/vrml
.wrlx-world/x-vrml
.wrzmodel/vrml
.wrzx-world/x-vrml
.wsctext/scriplet
.wsrcapplication/x-wais-source
.wtk application/x-wintalk
.xbmimage/x-xbitmap
.xbmimage/x-xbm
.xbmimage/xbm
.xdrvideo/x-amt-demorun
.xgzxgl/drawing
.xifimage/vnd.xiff
.xlapplication/excel
.xlaapplication/excel
.xlaapplication/x-excel
.xlaapplication/x-msexcel
.xlbapplication/excel
.xlbapplication/vnd.ms-excel
.xlbapplication/x-excel
.xlcapplication/excel
.xlcapplication/vnd.ms-excel
.xlcapplication/x-excel
.xld application/excel
.xld application/x-excel
.xlkapplication/excel
.xlkapplication/x-excel
.xllapplication/excel
.xllapplication/vnd.ms-excel
.xllapplication/x-excel
.xlmapplication/excel
.xlmapplication/vnd.ms-excel
.xlmapplication/x-excel
.xlsapplication/excel
.xlsapplication/vnd.ms-excel
.xlsapplication/x-excel
.xlsapplication/x-msexcel
.xltapplication/excel
.xltapplication/x-excel
.xlvapplication/excel
.xlvapplication/x-excel
.xlwapplication/excel
.xlwapplication/vnd.ms-excel
.xlwapplication/x-excel
.xlwapplication/x-msexcel
.xmaudio/xm
.xmlapplication/xml
.xmltext/xml
.xmzxgl/movie
.xpixapplication/x-vnd.ls-xpix
.xpmimage/x-xpixmap
.xpmimage/xpm
.x-pngimage/png
.xsrvideo/x-amt-showrun
.xwdimage/x-xwd
.xwdimage/x-xwindowdump
.xyzchemical/x-pdb
.zapplication/x-compress
.zapplication/x-compressed
.zipapplication/x-compressed
.zipapplication/x-zip-compressed
.zipapplication/zip
.zipmultipart/x-zip
.zooapplication/octet-stream
.zshtext/x-script.zsh

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