| bokmål | nob-000 | X-box |
| davvisámegiella | sme-000 | X-box |
| luenga aragonesa | arg-000 | Xbox |
| bosanski | bos-000 | Xbox |
| català | cat-000 | Xbox |
| čeština | ces-000 | Xbox |
| 普通话 | cmn-000 | Xbox |
| 國語 | cmn-001 | Xbox |
| dansk | dan-000 | Xbox |
| Deutsch | deu-000 | Xbox |
| English | eng-000 | Xbox |
| Esperanto | epo-000 | Xbox |
| suomi | fin-000 | Xbox |
| français | fra-000 | Xbox |
| Gaeilge | gle-000 | Xbox |
| galego | glg-000 | Xbox |
| עברית | heb-000 | Xbox |
| hrvatski | hrv-000 | Xbox |
| íslenska | isl-000 | Xbox |
| italiano | ita-000 | Xbox |
| 日本語 | jpn-000 | Xbox |
| latviešu | lvs-000 | Xbox |
| Nāhuatlahtōlli | nci-000 | Xbox |
| Nederlands | nld-000 | Xbox |
| nynorsk | nno-000 | Xbox |
| bokmål | nob-000 | Xbox |
| polski | pol-000 | Xbox |
| português | por-000 | Xbox |
| română | ron-000 | Xbox |
| русский | rus-000 | Xbox |
| español | spa-000 | Xbox |
| srpski | srp-001 | Xbox |
| svenska | swe-000 | Xbox |
| Tagalog | tgl-000 | Xbox |
| Türkçe | tur-000 | Xbox |
| tiếng Việt | vie-000 | Xbox |
| 廣東話 | yue-000 | Xbox |
| English | eng-000 | Xbox 360 Binary User Interface File |
| English | eng-000 | Xbox 360 Executable File |
| English | eng-000 | Xbox 360 User Interface File |
| 日本語 | jpn-000 | Xbox 360 プラチナコレクション |
| English | eng-000 | Xbox compressed package file |
| English | eng-000 | Xbox Dashboard |
| English | eng-000 | Xbox Dashboard Script |
| Deutsch | deu-000 | Xbox Development Kit |
| English | eng-000 | Xbox Development Kit |
| English | eng-000 | Xbox Executable File |
| català | cat-000 | Xbox Live |
| 普通话 | cmn-000 | Xbox Live |
| 國語 | cmn-001 | Xbox Live |
| Deutsch | deu-000 | Xbox Live |
| English | eng-000 | Xbox Live |
| suomi | fin-000 | Xbox Live |
| français | fra-000 | Xbox Live |
| italiano | ita-000 | Xbox Live |
| 日本語 | jpn-000 | Xbox Live |
| Nederlands | nld-000 | Xbox Live |
| bokmål | nob-000 | Xbox Live |
| polski | pol-000 | Xbox Live |
| português | por-000 | Xbox Live |
| español | spa-000 | Xbox Live |
| svenska | swe-000 | Xbox Live |
| Deutsch | deu-000 | Xbox Live Arcade |
| English | eng-000 | Xbox Live Arcade |
| suomi | fin-000 | Xbox Live Arcade |
| français | fra-000 | Xbox Live Arcade |
| Nederlands | nld-000 | Xbox Live Arcade |
| bokmål | nob-000 | Xbox Live Arcade |
| español | spa-000 | Xbox Live Arcade |
| svenska | swe-000 | Xbox Live Arcade |
| English | eng-000 | Xbox Live Marketplace |
| bokmål | nob-000 | Xbox Live Marketplace |
| svenska | swe-000 | Xbox Live Marketplace |
| Deutsch | deu-000 | Xbox Live Marktplatz |
| English | eng-000 | Xbox Live Vision |
| suomi | fin-000 | Xbox Live Vision |
| português | por-000 | Xbox Live Vision |
| español | spa-000 | Xbox Live Vision |
| svenska | swe-000 | Xbox Live Vision |
| Deutsch | deu-000 | Xbox Media Center |
| English | eng-000 | Xbox Media Center |
| suomi | fin-000 | Xbox Media Center |
| français | fra-000 | Xbox Media Center |
| italiano | ita-000 | Xbox Media Center |
| bokmål | nob-000 | Xbox Media Center |
| polski | pol-000 | Xbox Media Center |
| español | spa-000 | Xbox Media Center |
| svenska | swe-000 | Xbox Media Center |
| English | eng-000 | Xbox Media Player |
| italiano | ita-000 | Xbox Media Player |
| polski | pol-000 | Xbox Media Player |
| English | eng-000 | Xbox Media Video File |
| English | eng-000 | Xbox Wavebank Audio Data |
| Türkçe | tur-000 | X Boyutlandırması |
| Yorno-So | dts-001 | [X bòy] yàŋá-lá |
| ISO 639-3 | art-001 | xbp |
| TechTarget file types | art-336 | X_B-Parasolid-CAD-File |
| TechTarget file types | art-336 | X_B-Parasolid-Model-Part-File |
| filename extensions | art-335 | xbplate |
| ISO 639-3 | art-001 | xbr |
| ISO 639-PanLex | art-274 | xbr-000 |
| ISO 639-PanLex | art-274 | xbr-001 |
| ISO 639-PanLex | art-274 | xbr-002 |
| ISO 639-PanLex | art-274 | xbr-003 |
| English | eng-000 | X-brace |
| English | eng-000 | x-braces |
| English | eng-000 | X-bracing |
| English | eng-000 | x-bracing |
| English | eng-000 | X-bracing system |
| English | eng-000 | X-bridge |
| 普通话 | cmn-000 | XBRL |
| 國語 | cmn-001 | XBRL |
| Deutsch | deu-000 | XBRL |
| English | eng-000 | XBRL |
| français | fra-000 | XBRL |
| Nederlands | nld-000 | XBRL |
| polski | pol-000 | XBRL |
| português | por-000 | XBRL |
| español | spa-000 | XBRL |
| svenska | swe-000 | XBRL |
| filename extensions | art-335 | xbsav |
| TechTarget file types | art-336 | XBSAV-Mass-Effect-2-Xbox-Saved-Game |
| English | eng-000 | XBT |
| 日本語 | jpn-000 | XBT |
| filename extensions | art-335 | xbt |
| English | eng-000 | XBT cast |
| English | eng-000 | XBT Client |
| tiếng Việt | vie-000 | XBT Client |
| English | eng-000 | XBTX Graphics |
| Luhua | cng-006 | xbu |
| Bangi | bni-000 | xbukwıi |
| Luhua | cng-006 | xbu kæ |
| Bangi | bni-000 | xbula |
| Togo-Kan | dtk-002 | [X bûⁿ] |
| português | por-000 | X burguer |
| English | eng-000 | xbutterfly |
| Türkçe | tur-000 | x-büyük |
| ISO 639-3 | art-001 | xbw |
| filename extensions | art-335 | xbw |
| ISO 639-PanLex | art-274 | xbw-000 |
| TechTarget file types | art-336 | XBW-Crossword |
| ISO 639-3 | art-001 | xbx |
| filename extensions | art-335 | xbx |
| TechTarget file types | art-336 | XBX-CD-Image-File |
| ISO 639-3 | art-001 | xby |
| ISO 639-PanLex | art-274 | xby-000 |
| Togo-Kan | dtk-002 | [X bɔ́ⁿ] gǒ: |
| Beni | djm-003 | [X bɔ̂:] nú |
| Perge Tegu | djm-004 | [X bɔ̀:] nɔ́: |
| Togo-Kan | dtk-002 | X bɔ́rɔ̀ |
| Togo-Kan | dtk-002 | [X bɔ́rɔ̀] dàân |
| Togo-Kan | dtk-002 | X bɔ́sɛ̀: |
| Walo | dbw-000 | [X bɔ̀ŋgɔ̀ |
| Beni | djm-003 | [X bɔ́ŋgɔ̀-m |
| Togo-Kan | dtk-002 | X bɛ́:-gɛ̀rɛ̀ |
| Yorno-So | dts-001 | X bɛ̀:-jɛ̀ mâ: |
| Togo-Kan | dtk-002 | [X bɛ́-má] nà:rⁿá kɔ̀ |
| nàŋ-dàmá | nzz-000 | [X bɛ́rɛ̀-gɛ̀ndɛ̀] gà |
| nàŋ-dàmá | nzz-000 | [X bɛ́rɛ̀-kɛ̀ndɛ̀] gà |
| Togo-Kan | dtk-002 | X bɛ́sɛ̀: |
| Universal Networking Language | art-253 | XC |
| català | cat-000 | XC |
| English | eng-000 | XC |
| suomi | fin-000 | XC |
| English | eng-000 | Xc |
| English | eng-000 | x c |
| Universal Networking Language | art-253 | xc |
| filename extensions | art-335 | xc |
| English | eng-000 | xc |
| suomi | fin-000 | xc- |
| filename extensions | art-335 | xc0 |
| TechTarget file types | art-336 | XC0-Xtree-gold-Dos-help-file |
| English | eng-000 | XC-120 Packplane |
| filename extensions | art-335 | xc2 |
| TechTarget file types | art-336 | XC2-HPXView-DACCS-Configuration-Haliplex-Communication-Systems |
| Taoping | cng-000 | Xc3 |
| Secwepemctsín | shs-000 | xc"7uy |
| 日本語 | jpn-000 | XC-99 |
| dižəʼəxon | zav-000 | xca' |
| dižəʼəxon | zav-000 | xca'aṉ |
| xnaꞌátj tu̱ꞌ | trc-000 | xcààn |
| dižəʼəxon | zav-000 | xca'aquə' |
| dižəʼəxon | zav-000 | xcabey |
| dižaʼxon | zpq-000 | xcaca' |
| dižəʼəxon | zav-000 | xcac̱h |
| dižaʼxon | zpq-000 | xcac̱h |
| dižəʼəxon | zav-000 | xcac̱h žit |
| dižaʼxon | zpq-000 | xcac̱h žit |
| tiếng Việt | vie-000 | xcaclatin |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | x̣čáct |
| English | eng-000 | Xcade |
| español | spa-000 | Xcade |
| English | eng-000 | XCal |
| Deutsch | deu-000 | xCal |
| français | fra-000 | xCal |
| English | eng-000 | Xcalak |
| Nederlands | nld-000 | Xcalak |
| español | spa-000 | Xcalak |
| dižəʼəxon | zav-000 | xcaḻj |
| dižaʼxon | zpq-000 | xcaḻj |
| tutunakutachawin | top-000 | xcám |
| dižəʼəxon | zav-000 | xcamis |
| bànà | bcw-000 | xčàmti |
| dižəʼəxon | zav-000 | xcan |
| dižaʼxon | zpq-000 | xcan |
| tiếng Việt | vie-000 | Xcăng-đi-na-vi |
| tiếng Việt | vie-000 | Xcăng-đi-na-vơ |
| tiếng Việt | vie-000 | Xcăn-đi-na-vi-a |
| Barbareño | boi-000 | xcap |
| Samala | inz-000 | xcap |
| Ventureño | veo-000 | xcap |
| tutunakutachawin | top-000 | xcapa |
| filename extensions | art-335 | xcappdata |
| Kwikapa | coc-000 | xcaq |
| filename extensions | art-335 | xcarchive |
| català | cat-000 | Xcaret |
| Deutsch | deu-000 | Xcaret |
| English | eng-000 | Xcaret |
| Deutsch | deu-000 | Xcas |
| English | eng-000 | Xcas |
| Esperanto | epo-000 | Xcas |
| français | fra-000 | Xcas |
| italiano | ita-000 | Xcas |
| Nederlands | nld-000 | Xcas |
| bokmål | nob-000 | Xcas |
| polski | pol-000 | Xcas |
| русский | rus-000 | Xcas |
| español | spa-000 | Xcas |
| dižaʼxon | zpq-000 | xcaše |
| English | eng-000 | X category |
| Zapoteco de San Dionisio Ocotepec | ztu-000 | xcay |
| Tsimshian | tsi-000 | xc̷ˀaʔasi |
| xnaꞌátj tu̱ꞌ | trc-000 | xcaꞌyánj a |
| Deutsch | deu-000 | XCB |
| English | eng-000 | XCB |
| français | fra-000 | XCB |
| 日本語 | jpn-000 | XCB |
| ISO 639-3 | art-001 | xcb |
| TechTarget file types | art-336 | XC-Bitmap-image-X-server-screen |
| ISO 639-3 | art-001 | xcc |
| Gawwada—Dalpena | gwd-000 | x̩ččap- |
| ISO 4217 | art-320 | XCD |
| bosanski | bos-000 | XCD |
| brezhoneg | bre-000 | XCD |
| български | bul-000 | XCD |
| català | cat-000 | XCD |
| English | eng-000 | XCD |
| Australian English | eng-009 | XCD |
| suomi | fin-000 | XCD |
| français | fra-000 | XCD |
| hrvatski | hrv-000 | XCD |
| magyar | hun-000 | XCD |
| кыргыз | kir-000 | XCD |
| lietuvių | lit-000 | XCD |
| bokmål | nob-000 | XCD |
| română | ron-000 | XCD |
| español | spa-000 | XCD |
| українська | ukr-000 | XCD |
| filename extensions | art-335 | xcd |
| filename extensions | art-335 | xcdatamodel |
| filename extensions | art-335 | xcdatamodeld |
| TechTarget file types | art-336 | XCDATAMODEL-Xcode-Core-Data-based-Data-Model-Apple-Inc |
| Deutsch | deu-000 | X-CD-Roast |
| English | eng-000 | X-CD-Roast |
| français | fra-000 | X-CD-Roast |
| 日本語 | jpn-000 | X-CD-Roast |
| español | spa-000 | X-CD-Roast |
| TechTarget file types | art-336 | XCD-WarpIN-CID-Configuration-Installation-Distribution-File |
| ISO 639-3 | art-001 | xce |
| Taoping | cng-000 | xce |
| Lazuri | lzz-000 | xçe |
| ISO 639-PanLex | art-274 | xce-000 |
| filename extensions | art-335 | xcel |
| Deutsch | deu-000 | Xcel Energy |
| English | eng-000 | Xcel Energy |
| Deutsch | deu-000 | Xcel Energy Center |
| English | eng-000 | Xcel Energy Center |
| suomi | fin-000 | Xcel Energy Center |
| français | fra-000 | Xcel Energy Center |
| polski | pol-000 | Xcel Energy Center |
| English | eng-000 | Xceleon Technologies |
| Deutsch | deu-000 | Xcelerator |
| English | eng-000 | Xcelerator |
| TechTarget file types | art-336 | XCEL-Excel-File |
| English | eng-000 | X cell |
| English | eng-000 | X-cell |
| English | eng-000 | Xcellent |
| English | eng-000 | X celluloid |
| TechTarget file types | art-336 | XCEL-MAC-CREATOR-CODE-Excel-1-PC-ext-XLS |
| TechTarget file types | art-336 | XCEL-MAC-CREATOR-CODE-Excel-5-PC-ext-XLS |
| xʷsenəčqən | str-000 | x̣čel̕s |
| svenska | swe-000 | Xcerion |
| English | eng-000 | Xcerion XIOS |
| English | eng-000 | X certificate |
| English | eng-000 | X-certificate |
| Türkçe | tur-000 | X-Cetveli |
| Secwepemctsín | shs-000 | xc"ey"men |
| Lazuri | lzz-000 | Xçezoğa |
| Deutsch | deu-000 | XCF |
| English | eng-000 | XCF |
| français | fra-000 | XCF |
| italiano | ita-000 | XCF |
| 日本語 | jpn-000 | XCF |
| polski | pol-000 | XCF |
| slovenščina | slv-000 | XCF |
| filename extensions | art-335 | xcf |