| English | eng-000 | QBIK |
| svenska | swe-000 | QBIK |
| Deutsch | deu-000 | QBIK Karlstad |
| el maghribïya | ary-001 | Qbila |
| Taroko | trv-000 | qbila |
| Arāmît | oar-000 | qbīlā |
| TechTarget file types | art-336 | QBI-QuickBooks-Crash-Roll-Back-File-Intuit-Inc |
| English | eng-000 | q-bit |
| English | eng-000 | QBittorrent |
| français | fra-000 | Qbittorrent |
| polski | pol-000 | Qbittorrent |
| filename extensions | art-335 | qbk |
| TechTarget file types | art-336 | QBK-QuickTax-Backup-File |
| filename extensions | art-335 | qbl |
| el maghribïya | ary-001 | qbl |
| Peace Corps 2007 Tamazight | tzm-009 | qbl |
| TechTarget file types | art-336 | QBL-Business-Lawyer-Document |
| TechTarget file types | art-336 | QBL-Business-Lawyer-document-file |
| Taroko | trv-000 | qbling |
| filename extensions | art-335 | qbm |
| filename extensions | art-335 | qbmb |
| filename extensions | art-335 | qbmd |
| TechTarget file types | art-336 | QB-MicroCase-QBank-Cengage-Learning |
| TechTarget file types | art-336 | QBM-QuickBooks-Portable-Company-file |
| filename extensions | art-335 | qbo |
| English | eng-000 | Q-boat |
| English | eng-000 | Q’-boat |
| English | eng-000 | q-boat |
| TechTarget file types | art-336 | QBO-Compiled-query-dBase-IV |
| English | eng-000 | Q-BOF |
| Rengao | ren-000 | qbok phao |
| English | eng-000 | Q-Bond |
| svenska | swe-000 | Q-Bond |
| English | eng-000 | Q-BOP process |
| English | eng-000 | q bop process |
| English | eng-000 | QBoy |
| español | spa-000 | QBoy |
| français | fra-000 | Qboy |
| Türkçe | tur-000 | QBoyutları |
| filename extensions | art-335 | qbquery |
| TechTarget file types | art-336 | QBQUERY-MySQL-Query-Browser-saved-SQL-query-command-file |
| English | eng-000 | Q.B.R. |
| English | eng-000 | Q branch |
| English | eng-000 | q branch |
| English | eng-000 | Q-Broxin |
| filename extensions | art-335 | qbs |
| TechTarget file types | art-336 | QBS-Program-file-Microsoft-QuickBasic |
| English | eng-000 | QBS Software |
| Taroko | trv-000 | qbsuran |
| filename extensions | art-335 | qbt |
| English | eng-000 | QB - Text Analyzer Archive |
| TechTarget file types | art-336 | QB-Tony-Hawk-s-Pro-Skater-Script-Neversoft-Entertainment |
| TechTarget file types | art-336 | QBT-QuicBooks-temp-rebuild-file |
| English | eng-000 | QBU-88 |
| suomi | fin-000 | QBU-88 |
| English | eng-000 | Q.B.U.C. |
| Taroko | trv-000 | qbulit |
| Atayal | tay-000 | qbuliʔ |
| Taroko | trv-000 | qburung |
| hrvatski | hrv-000 | Q-BUS |
| English | eng-000 | Q-Bus |
| 日本語 | jpn-000 | Q-bus |
| Konzo | koo-000 | qbusingiri |
| filename extensions | art-335 | qbw |
| Rengao | ren-000 | qbwi |
| TechTarget file types | art-336 | QBW-Spreadsheet-data-QuickBooks-for-Windows |
| filename extensions | art-335 | qbx |
| TechTarget file types | art-336 | QBX-Intuit-de-online-file |
| TechTarget file types | art-336 | QBX-QuickBooks-accountant-s-review-copy |
| TechTarget file types | art-336 | QBX-QuickBooks-Accountant-Transfer-File-Intuit-Inc |
| TechTarget file types | art-336 | QBX-Win3-Quicken-Qbtxsys-file |
| Atayal | tay-000 | qbyung |
| English | eng-000 | QBZ-95 |
| français | fra-000 | QBZ-95 |
| Hangungmal | kor-001 | QBZ-95 |
| English | eng-000 | Q.C. |
| العربية | arb-000 | QC |
| Ôxômiya | asm-002 | QC |
| 普通话 | cmn-000 | QC |
| Hànyǔ | cmn-003 | QC |
| dansk | dan-000 | QC |
| Deutsch | deu-000 | QC |
| eesti | ekk-000 | QC |
| ελληνικά | ell-000 | QC |
| English | eng-000 | QC |
| euskara | eus-000 | QC |
| français | fra-000 | QC |
| עברית | heb-000 | QC |
| Hindi | hin-002 | QC |
| magyar | hun-000 | QC |
| 日本語 | jpn-000 | QC |
| lietuvių | lit-000 | QC |
| latviešu | lvs-000 | QC |
| Makedonski jazik | mkd-001 | QC |
| Nederlands | nld-000 | QC |
| پښتو ژبه | pbu-000 | QC |
| português | por-000 | QC |
| română | ron-000 | QC |
| srpski | srp-001 | QC |
| svenska | swe-000 | QC |
| ภาษาไทย | tha-000 | QC |
| Türkçe | tur-000 | QC |
| اردو | urd-000 | QC |
| tiếng Việt | vie-000 | QC |
| Bahasa Malaysia | zsm-000 | QC |
| English | eng-000 | Qc |
| filename extensions | art-335 | qc |
| English | eng-000 | qc |
| Romant | fro-000 | qc |
| français | fra-000 | qc. |
| italiano | ita-000 | qc. |
| Coos | csz-000 | qca |
| français | fra-000 | qc à achever |
| čeština | ces-000 | QCad |
| 普通话 | cmn-000 | QCad |
| 國語 | cmn-001 | QCad |
| Deutsch | deu-000 | QCad |
| English | eng-000 | QCad |
| italiano | ita-000 | QCad |
| polski | pol-000 | QCad |
| português | por-000 | QCad |
| русский | rus-000 | QCad |
| español | spa-000 | QCad |
| tiếng Việt | vie-000 | QCad |
| français | fra-000 | Qcad |
| română | ron-000 | Qcad |
| français | fra-000 | qc à deviner |
| Proto-Oto-Pamean | omq-000 | q cahi |
| Mam de Santa Barbara | mam-002 | qCan |
| Mam de San Pedro Necta | mam-007 | qCan |
| Mam de Cabrican | mam-011 | qCan |
| Mam de Consepcion Chiquirichapa | mam-013 | qCan |
| Mam de Totos Santos Cuchumatan | mam-019 | qCan |
| français | fra-000 | qc à quoi on aspire |
| français | fra-000 | qc à quoi on peut se rapporter |
| English | eng-000 | Q-car |
| Mam de Cabrican | mam-011 | qCas |
| Proto-Oto-Pamean | omq-000 | q casata |
| English | eng-000 | QCB |
| filename extensions | art-335 | qcb |
| English | eng-000 | qcb |
| TechTarget file types | art-336 | QCB-Combat-Flight-Simulator-Quick-Combat-Editor-File-Microsoft-Corporation |
| TechTarget file types | art-336 | QCB-QConBridge |
| filename extensions | art-335 | qcc |
| English | eng-000 | QC- CALC File |
| English | eng-000 | QC checker |
| English | eng-000 | QC circle |
| TechTarget file types | art-336 | QCC-QC-CALC-File |
| Peace Corps 2007 Tamazight | tzm-009 | qccr |
| Deutsch | deu-000 | QCD |
| English | eng-000 | QCD |
| suomi | fin-000 | QCD |
| français | fra-000 | QCD |
| polski | pol-000 | QCD |
| filename extensions | art-335 | qcd |
| français | fra-000 | qcd |
| 日本語 | jpn-000 | qcd |
| français | fra-000 | qc d’affreux |
| français | fra-000 | qc d’ajouté |
| français | fra-000 | qc dans le genre |
| TechTarget file types | art-336 | QCD-Cliq-Accessories-Phonebook-Data |
| français | fra-000 | qc de aigre |
| français | fra-000 | qc de chaud |
| français | fra-000 | qc de mauvais |
| English | eng-000 | QC department |
| français | fra-000 | qc de peu de valeur |
| italiano | ita-000 | QCD perturbativa |
| italiano | ita-000 | QCD su reticolo |
| français | fra-000 | qc du même acabit |
| English | eng-000 | QCD vacuum |
| Mam de Totos Santos Cuchumatan | mam-019 | qC"ek |
| Mam de San Pedro Necta | mam-007 | qC"eky~ |
| Deutsch | deu-000 | Q-Cells |
| English | eng-000 | Q-Cells |
| suomi | fin-000 | Q-Cells |
| English | eng-000 | QC engineer |
| filename extensions | art-335 | qcf |
| TechTarget file types | art-336 | QCF-Microsoft-QuickBASIC-coordinates-file |
| TechTarget file types | art-336 | QCF-Q-emuLator-file |
| TechTarget file types | art-336 | QCF-QuickBASIC-Coordinates-File |
| TechTarget file types | art-336 | QCF-QuickLogic-Constraint-File |
| TechTarget file types | art-336 | QCF-QuikCAT-compressed-file |
| Türkçe | tur-000 | QC Güvenilen Kullanıcı |
| filename extensions | art-335 | qch |
| français | fra-000 | qch |
| English | eng-000 | Q channel |
| English | eng-000 | Q characteristic |
| English | eng-000 | Q check |
| français | fra-000 | qch fait en or |
| chiShona | sna-000 | qchidza |
| TechTarget file types | art-336 | QCH-Qt-Compressed-Help-Trolltech-Qt-Assistant |
| TechTarget file types | art-336 | QCH-SSI-Dark-Queen-of-Krynn-File |
| filename extensions | art-335 | qci |
| Siuslaw | sis-000 | qci |
| Mam de San Pedro Necta | mam-007 | qCib"xal |
| Mam de San Juan Ostuncalco | mam-014 | qCib"xil |
| TechTarget file types | art-336 | QCI-Cliq-Accessories-Phonebook-Index |
| English | eng-000 | QCID |
| Deutsch | deu-000 | QCIF |
| English | eng-000 | QCIF |
| français | fra-000 | QCIF |
| italiano | ita-000 | QCIF |
| TechTarget file types | art-336 | QCI-Massively-Parallel-Quantum-Chemistry-Program-File |
| filename extensions | art-335 | qck |
| TechTarget file types | art-336 | QCK-Jigsaw-2-Astrological-Tool-File |
| TechTarget file types | art-336 | QCK-QuickCard-File |
| TechTarget file types | art-336 | QCK-Quick-Charts-File |
| TechTarget file types | art-336 | QCK-Quick-Foram-Count-File |
| GeoNames Feature Codes | art-286 | QCKS |
| TechTarget file types | art-336 | QCK-VAX-CRYSTALS-Chemical-Crystallogaphy-File |
| English | eng-000 | QCL |
| English | eng-000 | QC lab |
| English | eng-000 | QC laser |
| English | eng-000 | Q clearance |
| français | fra-000 | qc léger volant à tout vent |
| français | fra-000 | qc libre à l’usage |
| français | fra-000 | qc lié au monastère |
| English | eng-000 | Q.C.L.L.R. |
| français | fra-000 | qc lui fait défaut |
| français | fra-000 | QCM |
| filename extensions | art-335 | qcm |
| TechTarget file types | art-336 | QCM-3164-Emulator-Quick-Command-File |
| TechTarget file types | art-336 | QCM-QUCM-Application-File |
| Mam de San Ildefonso Ixtahuacan | mam-005 | qC"oC" |
| English | eng-000 | Q-code |
| English | eng-000 | q-code |
| English | eng-000 | Q code Q |
| Proto-Oto-Pamean | omq-000 | q coho quevui |
| Klamath-Modoc | kla-000 | qCol |
| English | eng-000 | q components |
| English | eng-000 | QConBridge |
| English | eng-000 | Q Continuum |
| English | eng-000 | Q correlation |
| filename extensions | art-335 | qcow |
| filename extensions | art-335 | qcow2 |
| TechTarget file types | art-336 | QCOW2-QEMU-Copy-On-Write-file |
| TechTarget file types | art-336 | QCOW-QEMU-Copy-On-Write-file |
| filename extensions | art-335 | qcp |
| English | eng-000 | QC Player |
| français | fra-000 | qc prêt pour le combat |
| TechTarget file types | art-336 | QC-Progress-Results-Configuration-Progress-Software-Corporation |
| English | eng-000 | QCPSK |
| TechTarget file types | art-336 | QCP-Voice-file-Qualcomm-Pure-Voice |
| français | fra-000 | qc qui cloche |
| français | fra-000 | qc qui sert |
| English | eng-000 | Q.C.R. |
| English | eng-000 | QC&R |
| English | eng-000 | QCR |
| English | eng-000 | QCRI |
| English | eng-000 | QC routine |
| English | eng-000 | QCS |
| filename extensions | art-335 | qcs |
| TechTarget file types | art-336 | QCS-CADQC-Standard-File |
| français | fra-000 | qc servant à barrer |
| TechTarget file types | art-336 | QC-Steam-Source-SDK-Model-Source-File-Valve-Corporation |
| English | eng-000 | QCT |
| filename extensions | art-335 | qct |
| English | eng-000 | qctavo |
| TechTarget file types | art-336 | QCT-Memory-Map-File |
| English | eng-000 | QC Trusted User |
| italiano | ita-000 | qcu. |
| español hondureño | spa-015 | qcuadro |
| Mam de San Martin Sacatepequez | mam-015 | qc"umal |
| Mam de San Juan Ostuncalco | mam-014 | qc"umil |
| Taroko | trv-000 | qcurux |
| Khunsari | kfm-000 | qcyqač |
| Türkçe | tur-000 | QC Yürütücü |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | q̕cə́təŋ |
| English | eng-000 | QD |
| italiano | ita-000 | QD |
| filename extensions | art-335 | qd |
| Dutton Speedwords | dws-000 | qd |
| English | eng-000 | qd |
| filename extensions | art-335 | qd0 |
| TechTarget file types | art-336 | QD0-Data-file-segment-10-Omnis-Quartz |
| filename extensions | art-335 | qd1 |
| TechTarget file types | art-336 | QD1-Data-file-segment-1-Omnis-Quartz |
| filename extensions | art-335 | qd2 |
| TechTarget file types | art-336 | QD2-Data-file-segment-2-Omnis-Quartz |
| filename extensions | art-335 | qd3 |
| filename extensions | art-335 | qd3d |
| TechTarget file types | art-336 | QD3-Data-file-segment-3-Omnis-Quartz |
| TechTarget file types | art-336 | QD3D-QuickDraw-3D-Metafile-Apple |
| filename extensions | art-335 | qd4 |
| TechTarget file types | art-336 | QD4-Data-file-segment-4-Omnis-Quartz |
| filename extensions | art-335 | qd5 |
| TechTarget file types | art-336 | QD5-Data-file-segment-5-Omnis-Quartz |
| filename extensions | art-335 | qd6 |
| TechTarget file types | art-336 | QD6-Data-file-segment-6-Omnis-Quartz |
| filename extensions | art-335 | qd7 |
| TechTarget file types | art-336 | QD7-Data-file-segmnet-7-Omnis-Quartz |
| filename extensions | art-335 | qd8 |
| TechTarget file types | art-336 | QD8-Data-file-segment-8-Omnis-Quartz |
| filename extensions | art-335 | qd9 |
| TechTarget file types | art-336 | QD9-Data-file-segment-9-Omnis-Quartz |