| 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 |
| TechTarget file types | art-336 | XCF-GIMP-document |
| ISO 639-3 | art-001 | xcg |
| ISO 639-PanLex | art-274 | xcg-000 |
| English | eng-000 | Xch |
| ISO 639-3 | art-001 | xch |
| ISO 639-PanLex | art-274 | xch-000 |
| English | eng-000 | X-Change |
| Deutsch | deu-000 | XChange |
| English | eng-000 | XChange |
| 日本語 | jpn-000 | Xchange |
| Q’eqchi’ | kek-000 | xchaq'al wu' |
| Q’eqchi’ | kek-000 | xchaqʼnaʼ naʼ |
| Türkçe | tur-000 | X. Charles |
| asturianu | ast-000 | X-Chat |
| 普通话 | cmn-000 | X-Chat |
| 國語 | cmn-001 | X-Chat |
| 日本語 | jpn-000 | X-Chat |
| português | por-000 | X-Chat |
| русский | rus-000 | X-Chat |
| español | spa-000 | X-Chat |
| srpski | srp-001 | X-Chat |
| čeština | ces-000 | X-chat |
| hrvatski | hrv-000 | X-chat |
| Türkçe | tur-000 | X-chat |
| bălgarski ezik | bul-001 | XChat |
| català | cat-000 | XChat |
| Deutsch | deu-000 | XChat |
| English | eng-000 | XChat |
| suomi | fin-000 | XChat |
| français | fra-000 | XChat |
| italiano | ita-000 | XChat |
| lietuvių | lit-000 | XChat |
| Nederlands | nld-000 | XChat |
| nynorsk | nno-000 | XChat |
| bokmål | nob-000 | XChat |
| polski | pol-000 | XChat |
| svenska | swe-000 | XChat |
| dižəʼəxon | zav-000 | xc̱he'e |
| diidza xhon | zad-000 | xcheʼe belhj |
| diidza xhon | zad-000 | xche’e belhj |
| diidxazá | zap-000 | xche’e belhj |
| diidza xhon | zad-000 | xcheʼebelhja |
| diidza xhon | zad-000 | xche’ebelhja |
| diidxazá | zap-000 | xche’ebelhja |
| dižəʼəxon | zav-000 | xc̱he'e beljw |
| dižaʼxon | zpq-000 | xc̱he'e beljw |
| dižaʼxon | zpq-000 | xc̱he'e beṉj |
| A@Side-PalmForward S@Side-PalmForward L@Side-PalmForward | ase-000 | X@Cheek-PalmBack Hook |
| Q’eqchi’ | kek-000 | xche'el kab' |
| diidza xhon | zad-000 | xchegaʼ |
| diidza xhon | zad-000 | xchega’ |
| diidxazá | zap-000 | xchega’ |
| dižaʼxon | zpq-000 | xc̱hega' |
| dižəʼəxon | zav-000 | xc̱heguə' |
| dižəʼəxon | zav-000 | xc̱hen |
| dižaʼxon | zpq-000 | xc̱hene yag |
| A@Side-PalmForward S@Side-PalmForward L@Side-PalmForward | ase-000 | X@Chest-PalmBack-X@Chest-PalmBack X@Sternum-PalmBack-X@Abdomen-PalmBack |
| diidza xhon | zad-000 | xcheta |
| diidxazá | zap-000 | xcheta |
| dižaʼxon | zpq-000 | xc̱hete |
| dižəʼəxon | zav-000 | xc̱hetə |
| dižəʼəxon | zav-000 | xc̱hež |
| dižaʼxon | zpq-000 | xc̱hež |
| Zapoteco de San Dionisio Ocotepec | ztu-000 | xchi |
| dižəʼəxon | zav-000 | xc̱higuə' |
| Q’eqchi’ | kek-000 | xchi habʼ |
| diidza xhon | zad-000 | xchinlazeʼ |
| diidza xhon | zad-000 | xchinlaze’ |
| diidxazá | zap-000 | xchinlaze’ |
| Zapoteco de San Dionisio Ocotepec | ztu-000 | xchiru |
| English | eng-000 | X-chisel |
| English | eng-000 | x chisel |
| dižəʼəxon | zav-000 | xc̱ho' |
| dižəʼəxon | zav-000 | xc̱ho'a |
| dižaʼxon | zpq-000 | xc̱ho'a |
| diidza xhon | zad-000 | xchogaʼ |
| diidza xhon | zad-000 | xchoga’ |
| diidxazá | zap-000 | xchoga’ |
| dižaʼxon | zpq-000 | xc̱hoga' |
| diidza xhon | zad-000 | xchogaʼzit |
| diidza xhon | zad-000 | xchoga’zit |
| diidxazá | zap-000 | xchoga’zit |
| dižəʼəxon | zav-000 | xc̱hoguə' |
| Q’eqchi’ | kek-000 | xchoybʼal |
| Deutsch | deu-000 | X-Chromosom |
| Gaeilge | gle-000 | X-chrómosóm |
| Universal Networking Language | art-253 | X chromosome |
| English | eng-000 | X chromosome |
| English | eng-000 | X-chromosome |
| English | eng-000 | x chromosome |
| Universal Networking Language | art-253 | X-chromosome(scn>biology,icl>chromosome) |
| Afrikaans | afr-000 | X-chromosoom |
| Nederlands | nld-000 | X-chromosoom |
| Q’eqchi’ | kek-000 | xchuʼi keh |
| Qatzijobʼal | quc-000 | xchunajaʼ |
| Maaya Tʼaan | yua-000 | xchʼuup |
| Maaya Tʼaan | yua-000 | xch’uup |
| Universal Networking Language | art-253 | XCI |
| Universal Networking Language | art-253 | xci |
| filename extensions | art-335 | xci |
| English | eng-000 | xci |
| suomi | fin-000 | xci |
| Universal Networking Language | art-253 | XCII |
| Universal Networking Language | art-253 | xcii |
| English | eng-000 | xcii |
| suomi | fin-000 | xcii |
| Universal Networking Language | art-253 | xciii |
| English | eng-000 | xciii |
| suomi | fin-000 | xciii |
| Universal Networking Language | art-253 | XCIII(icl>number) |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | x̣cíkʷst |
| Beni | djm-003 | [X cílè] gǒ |
| yàndà-dòm | dym-000 | [X cìndà] cé:zí-yé |
| yàndà-dòm | dym-000 | [X cìndà] lɔ̀gɔ́ |
| Lazuri | lzz-000 | xçini |
| Lingua Franca Nova | lfn-000 | xcip |
| Lingua Franca Nova | lfn-000 | Xciperia |
| English | eng-000 | Xcira |
| Deutsch | deu-000 | XCircuit |
| English | eng-000 | XCircuit |
| English | eng-000 | X-circulator |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | XCit |
| Songish | str-004 | XCit |
| SENĆOŦEN | str-002 | xCit |
| xʷsenəčqən | str-000 | x̣čit |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | x̣čít |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | x̣č̕ít |
| bànà | bcw-000 | xčìti |
| GeoNames Feature Codes | art-286 | XCITYL |
| GeoNames Feature Codes | art-286 | XCITYM |
| GeoNames Feature Codes | art-286 | XCITYS |
| Universal Networking Language | art-253 | xciv |
| English | eng-000 | xciv |
| suomi | fin-000 | xciv |
| Universal Networking Language | art-253 | XCIV(icl>number) |
| TechTarget file types | art-336 | XCI-XML-Configuration-Information-Adobe-enterprise-forms-product |
| filename extensions | art-335 | xck |
| Kwikapa | coc-000 | xčkaɾ |
| TechTarget file types | art-336 | XCK-Extended-crack-file-usually-text |
| ISO 639-3 | art-001 | xcl |
| Universal Networking Language | art-253 | xcl |
| filename extensions | art-335 | xcl |
| English | eng-000 | xcl |
| suomi | fin-000 | xcl |
| ISO 639-PanLex | art-274 | xcl-000 |
| ISO 639-PanLex | art-274 | xcl-001 |
| Deutsch | deu-000 | X-Clan |
| English | eng-000 | X-Clan |
| tiếng Việt | vie-000 | xclêrôz |
| Universal Networking Language | art-253 | XCL(icl>number) |
| TechTarget file types | art-336 | XCL-Xtree-for-Windows-Script-file-Xtree-for-Win |
| TechTarget file types | art-336 | XCL-Xtree-for-Win-Script |
| ISO 639-3 | art-001 | xcm |
| filename extensions | art-335 | xcm |
| ISO 639-PanLex | art-274 | xcm-000 |
| TechTarget file types | art-336 | XCM-CmapTools-Exported-Concept-Map-IHMC |
| ISO 639-3 | art-001 | xcn |
| filename extensions | art-335 | xcn |
| ISO 639-PanLex | art-274 | xcn-000 |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | x̣čnáxʷ |
| TechTarget file types | art-336 | XCN-HPXView-DACCS-Configuration-Haliplex-Communication-Systems |
| ISO 639-3 | art-001 | xco |
| ISO 639-PanLex | art-274 | xco-000 |
| tiếng Việt | vie-000 | xcobut |
| 普通话 | cmn-000 | Xcode |
| 國語 | cmn-001 | Xcode |
| Deutsch | deu-000 | Xcode |
| English | eng-000 | Xcode |
| français | fra-000 | Xcode |
| italiano | ita-000 | Xcode |
| 日本語 | jpn-000 | Xcode |
| polski | pol-000 | Xcode |
| español | spa-000 | Xcode |
| svenska | swe-000 | Xcode |
| українська | ukr-000 | Xcode |
| filename extensions | art-335 | xcode |
| English | eng-000 | Xcode App Data File |
| English | eng-000 | Xcode Archive |
| English | eng-000 | Xcode Auto-Complete File |
| English | eng-000 | Xcode Compiled Core Data - based Data Model |
| English | eng-000 | Xcode Compiled Rez Program |
| English | eng-000 | Xcode Core Data - based Data Model |
| English | eng-000 | Xcode Core Data Model File |
| English | eng-000 | Xcode Core MIG Program |
| English | eng-000 | Xcode C++ Source |
| English | eng-000 | Xcode C++ Source File |
| English | eng-000 | Xcode Debug Symbols File |
| English | eng-000 | Xcode Developer Profile |
| English | eng-000 | Xcode development project file |
| English | eng-000 | Xcode Dynamic library |
| English | eng-000 | Xcode Makefile Script |
| English | eng-000 | Xcode Mobile Provisioning Profile |
| English | eng-000 | Xcode Objective-C Unit Test Bundle |
| filename extensions | art-335 | xcodeproj |
| English | eng-000 | Xcode Project |
| English | eng-000 | Xcode Project Data File |
| English | eng-000 | Xcode Project User Data File |
| TechTarget file types | art-336 | XCODEPROJ-Xcode-Project |
| TechTarget file types | art-336 | XCODEPROJ-Xcode-Project-Apple-Inc |
| English | eng-000 | Xcode Snapshot |
| English | eng-000 | Xcode Workspace File |
| TechTarget file types | art-336 | XCODE-Xcode-development-project-file |
| TechTarget file types | art-336 | XCODE-Xcode-Project |
| English | eng-000 | XCOFF |
| polski | pol-000 | XCOFF |
| dižəʼəxon | zav-000 | xcog |
| dižaʼxon | zpq-000 | xcog |
| diidza xhon | zad-000 | xcogo |
| diidxazá | zap-000 | xcogo |
| dižəʼəxon | zav-000 | xcolor |
| čeština | ces-000 | X-COM |
| Deutsch | deu-000 | X-COM |
| English | eng-000 | X-COM |
| suomi | fin-000 | X-COM |
| français | fra-000 | X-COM |
| עברית | heb-000 | X-COM |
| polski | pol-000 | X-COM |
| русский | rus-000 | X-COM |
| español | spa-000 | X-COM |
| svenska | swe-000 | X-COM |
| English | eng-000 | X-COM: Apocalypse |
| français | fra-000 | X-COM: Apocalypse |
| italiano | ita-000 | X-COM: Apocalypse |
| polski | pol-000 | X-COM: Apocalypse |
| Universal Dependencies | art-307 | xcomp |
| English | eng-000 | xcomp |
| English | eng-000 | X component |
| English | eng-000 | X-component |
| English | eng-000 | xCOMPOSER.pro Multimedia data file |
| ISO 12620 | art-317 | x-compound |
| English | eng-000 | X-computer |
| čeština | ces-000 | X-COM: Terror from the Deep |
| English | eng-000 | X-COM: Terror from the Deep |
| français | fra-000 | X-COM: Terror from the Deep |
| italiano | ita-000 | X-COM: Terror from the Deep |
| polski | pol-000 | X-COM: Terror from the Deep |
| українська | ukr-000 | X-Com: UFO Defence |
| English | eng-000 | X-COM: UFO Defense |
| português | por-000 | X-COM: UFO Defense |
| polski | pol-000 | XCON |
| English | eng-000 | Xcon |
| dižəʼəxon | zav-000 | xco'ṉ |
| català | cat-000 | X Concili de Toledo |
| español | spa-000 | X Concilio de Toledo |
| dižaʼxon | zpq-000 | xconida' |
| English | eng-000 | X-conn |
| English | eng-000 | XCONN |
| English | eng-000 | X-contact |
| English | eng-000 | x-contact |
| English | eng-000 | x-control |
| xnaꞌátj tu̱ꞌ | trc-000 | xcóó |
| Nederlands | nld-000 | x-coördinaat |
| English | eng-000 | X coordinate |
| English | eng-000 | X-coordinate |
| English | eng-000 | x coordinate |
| English | eng-000 | x-coordinate |
| Taoping | cng-000 | xcopo |
| tiếng Việt | vie-000 | xcopolamin |
| English | eng-000 | XCOPY |
| español | spa-000 | XCOPY |
| English | eng-000 | xcopy |
| English | eng-000 | X-Corporation |
| français | fra-000 | X-Corporation |
| dižəʼəxon | zav-000 | xcoš |
| tiếng Việt | vie-000 | XCốt-lân |
| tiếng Việt | vie-000 | Xcốt-len |
| English | eng-000 | X coupler |
| English | eng-000 | X.cp. |
| Deutsch | deu-000 | XCP |
| filename extensions | art-335 | xcp |
| English | eng-000 | xcp |
| TechTarget file types | art-336 | XCP-Compressed-File |
| English | eng-000 | XC polymer |
| TechTarget file types | art-336 | XCP-Xbox-compressed-package-file |
| ISO 639-3 | art-001 | xcr |
| filename extensions | art-335 | xcr |
| ISO 639-PanLex | art-274 | xcr-000 |
| English | eng-000 | XCR archive Header |
| English | eng-000 | x cross member |
| English | eng-000 | x-cross member |
| tiếng Việt | vie-000 | Xcrup |
| TechTarget file types | art-336 | XCR-Warlords-Battlecry-Strategic-Studies-Group-Pty-Ltd |
| TechTarget file types | art-336 | XCR-XCR-archive-Header |
| filename extensions | art-335 | xcs |
| TechTarget file types | art-336 | XCS-BuzzLetter-Encrypted-Stationery-Template-StationeryCentral-com-Inc |
| English | eng-000 | XCSG |
| English | eng-000 | x c skiing |
| filename extensions | art-335 | xcsl |
| filename extensions | art-335 | xcsnapshots |