Welcome to the PC Pitstop File Extension Library, the internet's most complete and comprehensive source for file extension information. Over the years PC Pitstop has developed numerous free scans that diagnose various PC performance issues. Over 200 million scans that have been run all over the world contribute to our file extension libraries.

Welcome to the PC Pitstop File Extension Library

PC Pitstop's File Extension Library is the internet's most complete and comprehensive source for file extension information. Over the years PC Pitstop has developed numerous free scans that diagnose various PC performance issues. Over 200 million scans that have been run all over the world contribute to our file extension libraries.


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Search For File Extensions

File Extension


File Extensions Found

Extension Most Used Application File Name
q Tinn-R Editor tinn-r.exe
q0 XnView for Windows xnview.exe
q01 QuickTax 2001 Final qt2001.exe
q02 QuickTax 2002 Final qt2002.exe
q03 QuickTax 2003 Final qt2003.exe
q04 QuickTax 2004 Final qt2004.exe
q05 QuickTax 2005 Final qt2005.exe
q06 QuickTax 2006 Final qt2006.exe
q07 QuickTax 2007 Final qt2007.exe
q08 QuickTax "2008" Final qt2008.exe
q09 QuickTax "2009" Final qt2009.exe
q1a Uninstaller Stand-Alone Application uni.exe
q1b Uninstaller Stand-Alone Application uni.exe
q1q File Association Manager fam.exe
q2 iTunes itunes.exe
q2d File Association Manager fam.exe
q2q File Association Manager fam.exe
q3c Quick 3D Cover q3dcover.exe
q3d questviewer.exe questviewer.exe
q3dx Q3D Extractor 8 q3dextr.exe
q4 マルチフォーマット画像ビューア GV gv.exe
q4q File Association Manager fam.exe
q5r File Association Manager fam.exe
q75 QD75Win MFC アプリケーション qd75win.exe
q7q File Association Manager fam.exe
q8r File Association Manager fam.exe
q9r File Association Manager fam.exe
q9s File Association Manager fam.exe
qa Microsoft ® Windows Based Script Host 360.knl
qa1 FileMaker Pro Runtime amortizer.exe
qa2 QuiltAssistant quiltassistant.exe
qaa QAnywhere Agent qaagent.exe
qabs Lasershow Designer QuickShow qs.exe
qaf QuiltAssistant quiltassistant.exe
qai qcrun.exe qcrun.exe
qak AnswerKey answerkey.exe
qal Windows Write write.exe
qar Quartus II quartus.exe
qas The only contact management software designed for projects! qassist.exe
qat Notepad notepad.exe
qau QAnywhere Agent qaagent.exe
qav Notepad notepad.exe
qaw PatentWizard3.0 patentwizard.exe
qb Diploma 6 for Windows diploma6.exe
qb1 WordPerfect(R) 11 wpwin11.exe
qb2005 File Association Manager fam.exe
qb2006 File Association Manager fam.exe
qb2007 File Association Manager fam.exe
qb2009 File Association Manager fam.exe
qb2010 File Association Manager fam.exe
qb2011 File Association Manager fam.exe
qb2012 File Association Manager fam.exe
qb3 quicken.ico quicken.ico
qb4 quicken.ico quicken.ico
qb6 Uninstaller Stand-Alone Application uni.exe
qba QuickBooks Launcher qblaunch.exe
qbb QuickBooks Launcher qblaunch.exe
qbe Paradox for Windows Desktop pdxwin32.exe
qbi QuickBooks qbw32.exe
qbj QuickBooks Launcher qblaunch.exe
qbk File Association Manager fam.exe
qbl Broderbund Business Lawyer 2003 bl2003.exe
qbm QuickBooks Launcher qblaunch.exe
qbmb File Association Manager fam.exe
qbmd File Association Manager fam.exe
qbo QuickBooks qbw32.exe
qbox QQ电脑管家文件保险柜 qqpcfilesafe.exe
qbp Launch Quick Bid 4 quickbid.exe
qbq Launch Quick Bid 4 quickbid.exe
qbr QuickBooks Launcher qblaunch.exe
qbt QB POS Store Exchange qbposprocin.exe
qbw QuickBooks Launcher qblaunch.exe
qbx QuickBooks Launcher qblaunch.exe
qby QuickBooks Launcher qblaunch.exe
qbzsavedgame QBz qbz-wt.exe
qc File Association Manager fam.exe
qc3 QwikChord3 qwikchord3.exe
qc3x quick-cross3.exe quick-cross3.exe
qcb QuickBooks Customer/Client Manager App qbcm.exe
qcc qcsysmod.exe qcsysmod.exe
qcd Quality Companion qc.exe
qcf Quality Companion qc.exe
qcif YUV Player Deluxe yuvplayer.exe
qclk Lasershow Designer QuickShow qs.exe
qcm QuickBooks Customer/Client Manager App qbcm.exe
qcn QCTest(tm) Suite QCNView qcnview.exe
qconfig Quosal.Client quosal.client.exe
qcp RealPlayer realplay.exe
qcr Elcut® 5.7 Студенческая версия elcuts~1.exe
qcs Thomson Reuters Eikon 3.2, Eikon Desktop, 3GB eikon.exe
qct Memory-Map Navigator mmnav.exe
qcue Lasershow Designer QuickShow qs.exe
qcw QUOSA Information Manager quosaapp.exe
qcxml quickconnectlaunch.exe quickconnectlaunch.exe
qd3d CorelDRAW(R) coreldrw.exe
qda Accident Reconstruction Professional arpro7.exe
qdat QuickTime Player quicktimeplayer.exe
qdat~fpap-exl540 FilePtc.exe fileptc.exe
qdb Quicken Launcher qw.exe
qdc spcwin.exe spcwin.exe
qdes Altova DatabaseSpy 2010 databa~1.exe
qdf Quicken Launcher qw.exe
qdf-backup Quicken Launcher qw.exe
qdfm File Association Manager fam.exe
qdi Quicken Launcher qw.exe
qdl File Association Manager fam.exe
qdm QUOSA Information Manager quosaapp.exe
qdp weft-qda.exe weft-qda.exe
qdr Q-Dir 4.27 q-dir.exe
qds Directory Service Find dsquery.dll
qds~fpap-exl540 FilePtc.exe fileptc.exe
qdt Quicken Launcher qw.exe
qdt1 Internet Explorer iexplore.exe
qdt2 Internet Explorer iexplore.exe
qdt3 Internet Explorer iexplore.exe
qdt4 Internet Explorer iexplore.exe
qdt5 Internet Explorer iexplore.exe
qdt6 Internet Explorer iexplore.exe
qdv XnView for Windows xnview.exe
qdw TODO: eqwiz.exe
qdx キューブベース cbbase.exe
qe Sienergy5 sienergy5.exe
qed Memory-Map Navigator mmnav.exe
qef Lawyer hbl.exe
qeff Lasershow Designer QuickShow qs.exe
qel Quicken Launcher qw.exe
qem Quicken® ExpensAble(TM) qex.exe
qep Estate Planner eplan.exe
qesdemo Passerelle Cadsoft Build/MBOC Quantitatif vers Excel qestie.exe
qet Quicken® ExpensAble(TM) qex.exe
qex Quicken® ExpensAble(TM) qex.exe
qf Diploma 6 for Windows diploma6.exe
qfg TOK Player tokplayer.exe
qfg2sav Quest for Glory II qfg2vga.exe
qfl Lawyer hbl.exe
qfp Quicken Financial Planner qfp.exe
qfrm Lasershow Designer QuickShow qs.exe
qfs 边锋五子棋 five.exe
qft QuickFacts qckfacts.exe
qfu HP IceWall Quick File Store Client for Windows Executable Program hpqfs.exe
qfx Quicken Launcher qw.exe
qgd Application ude.exe
qgi Libronix Update update.exe
qgr elementclient.exe elementclient.exe
qgs qgis.bat qgis.bat
qgw QuickGantt for Windows Executable qgwin.exe
qgx cbpaint.exe cbpaint.exe
qhc Personal Assistant assistant.exe
qht QuickTime Player quicktimeplayer.exe
qht~fpap-exl540 FilePtc.exe fileptc.exe
qhtm QuickTime Player quicktimeplayer.exe
qhtm~fpap-exl540 FilePtc.exe fileptc.exe
qic Microsoft Backup for Windows® 98 msbackup.exe
qid shapem~2.exe shapem~2.exe
qif Quicken Launcher qw.exe
qil shapem~2.exe shapem~2.exe
qimp QQ影像素材包安装程序 qqimageimporter.exe
qit File Association Manager fam.exe
qiz Scientific Workplace swp-pro.ins
qj Webshots Photo Manager Launcher launcher.exe
qjb Qbase Data Transformer qbase.datatransformer.exe
qjpg Internet Explorer iexplore.exe
qkohc Microsoft ® Windows Based Script Host wscript.exe
qkp quikplot.exe quikplot.exe
qkr QuicKeys Editor qkeditor.exe
qks QuicKeys Editor qkeditor.exe
qkx QuicKeys Editor qkeditor.exe
qld EditPad Pro editpadpro7.exe
qlf quicklogin30.exe quicklogin30.exe
qlg buscheck.exe buscheck.exe
qlgenerator File Association Manager fam.exe
qli embird.exe embird.exe
qlk QLink qlink.exe
qls QuadraSite MFC Application quadrasite.exe
qlt Quilt-Pro quiltpro6.exe
qlv 腾讯视频 qqlive.exe
qly Qlarity Foundry / XtremeBuilder qlarit~1.exe
qm Firehand Ember Free ember.exe
qmb QQ电脑管家-装机助手 qqpcinstassist.exe
qmbl Logger Pro loggerpro.exe
qmd MultiCharts quotemanager.exe
qmf ORQuoteMonitor Application orquote.exe
qmg File Association Manager fam.exe
qmi The Holy Qur'an Viewer quranviewer2.exe
qml Quick Macros qm.exe
qmp キューブジオグラフ cbgeograph.exe
qmsb Internet Explorer iexplore.exe
qmul Lasershow Designer QuickShow qs.exe
qmv QvodPlayer qvodplayer.exe
qmx QuickMix Executable quickmix.exe
qna iLinc Client llclient.exe
qnf キューブページ cbpage.exe
qnm QAnimate MFC Application qanimatex.exe
qnr CBSquest cbsquest.exe
qntntsc imf_disp.exe imf_disp.exe
qntpal imf_disp.exe imf_disp.exe
qop Notepad notepad.exe
qos questionof.exe questionof.exe
qpa QuickTime Player quicktimeplayer.exe
qpak QQ电脑管家 qqpcaddwidget.exe
qpb QuickPractice quickpractice.exe
qpc KaleidaGraph kgraph.exe
qpd Auskunftssystem V.4.0 QSFavTool qsfusr.exe
qpf Quartus II quartus.exe
qpg QuickBooks qbw32.exe
qph Quicken Launcher qw.exe
qpi TFORMerNET_QuickPrint tfquickprint.exe
qpk Notepad notepad.exe
qpkg Notepad notepad.exe
qpl QvodPlayer qvodplayer.exe
qpm File Association Manager fam.exe
qpp キューブプロジェクタ 実行専用 cbprojx.exe
qpr Microsoft® Visual FoxPro® vfp6.exe
qprj Altova DatabaseSpy 2010 databa~1.exe
qpro Question-Pro question-pro.exe
qps QuickPayroll quickprl.exe
qpt QuarkXPress 8.12r0 quarkxpress.exe
qpulse Q-Pulse 5 q-pulse.exe
qpv Quick-PV quick-pv.exe
qpw Quattro Pro(R) Loader qpw.exe
qpx Microsoft® Visual FoxPro® vfp6.exe
qpx~fpap-exl540 FilePtc.exe fileptc.exe
qpyd QQ输入法 词库安装 1.0 qqimeregdict.exe
qpys QQ输入法 皮肤安装 1.0 qqimeregskin.exe
qq qqwin.exe qqwin.exe
qqeezlynxxml EZlynxBridge ezlynx_bridge.exe
qqt ReportBuilder 6.0 repbi60.exe
qqz qqlictool.exe qqlictool.exe
qr PerfectExpert ua130.exe
qrc File Association Manager fam.exe
qrd QRdraw MFC アプリケーション qrdrawad.exe
qrec Quadra quadra.exe
qrf キューブプレゼン cbpresen.exe
qrm qrcode.exe qrcode.exe
qrp Quicken Rental Property Manager qrental.exe
qrs SlickRun Command Line sr.exe
qrt XnView for Windows xnview.exe
qrx Webshots Photo Manager Launcher launcher.exe
qry ACT! by Sage actsage.exe
qs2 Quo v2 quo2.exe
qs3 QuickScript Editor for Win32 qseditor.exe
qs5 QuickScript Editor for Win32 qseditor.exe
qsaico QsaiConta qsaiconta.exe
qsb chnlstub.exe chnlstub.exe
qsc KaleidaGraph kgraph.exe
qscript Quantrix ModelerScript Executable qscript.exe
qsd quiksigma.exe quiksigma.exe
qsed QvodPlayer qvodplayer.exe
qseg aexplore.exe aexplore.exe
qsf JSファイル検索ツール jsfind.exe
qsfv QuickSFV quicksfv.exe
qsg Quest quest.exe
qsh QuantShare quantshare.exe
qshw Lasershow Designer QuickShow qs.exe
qsk Quintessential Media Player qmplayer.exe
qsl QSL Maker MFC Application qslmake.exe
qsm statement.ico statement.ico
qsn quiksigma.exe quiksigma.exe
qsp QuickScript Editor for Win32 qseditor.exe
qsprj frimo for Silverlight版 slquicker.exe
qss statementstyle.ico statementstyle.ico
qst statementtemplate.ico statementtemplate.ico
qsv QuickScript Editor for Win32 qseditor.exe
qsvr Quadra quadra.exe
qsw Lasershow Designer QuickShow qs.exe
qsx キューブカルク cbcalc.exe
qsyn Lasershow Designer QuickShow qs.exe
qt QuickTime Player quicktimeplayer.exe
qt_file Media Player Classic mplayerc.exe
qt~fpap-exl540 FilePtc.exe fileptc.exe
qt200 QUICKTRADER quicktrader.exe
qt201 QUICKTRADER quicktrader.exe
qt7 Microsoft® Works Spreadsheet wksss.exe
qtb QuickTake Presenter qtake.exe
qtc qtreader64.exe qtreader64.exe
qtch File Association Manager fam.exe
qte CASE case.exe
qtf AutoInstaller for Qtracker autoinst.exe
qti PictureViewer pictureviewer.exe
qti~fpap-exl540 FilePtc.exe fileptc.exe
qtif PictureViewer pictureviewer.exe
qtif~fpap-exl540 FilePtc.exe fileptc.exe
qtindex File Association Manager fam.exe
qtk dpmpv.exe dpmpv.exe
qtl QuickTime Player quicktimeplayer.exe
qtl~fpap-exl540 FilePtc.exe fileptc.exe
qtm miro.exe miro.exe
qtmp AutoInstaller for Qtracker autoinst.exe
qtp QuickTime Player quicktimeplayer.exe
qtp~fpap-exl540 FilePtc.exe fileptc.exe
qtpf ACDSee Photo Manager 12 acdseeqv12.exe
qtpp AutoInstaller for Qtracker autoinst.exe
qtq Question Tools Editor qte.exe
qtr iTunes itunes.exe
qts QuickTime Player quicktimeplayer.exe
qts~fpap-exl540 FilePtc.exe fileptc.exe
qtsk AutoInstaller for Qtracker autoinst.exe
qtt AutoInstaller for Qtracker autoinst.exe
qtv HDHomeRun QuickTV hdhomerun_quicktv.exe
qtx Quicken Launcher qw.exe
qtx~fpap-exl540 FilePtc.exe fileptc.exe
qtxt Lasershow Designer QuickShow qs.exe
qtz File Association Manager fam.exe
qu2 Quo v2 quo2.exe
qua Software for the Decision Sciences: Production/Operations Management, Quantitative Methods, Management Science, Operations Research pomqmv4.exe
quad PeaZip, file and archive manager peazip.exe
quantzsavedgame QuantZ quantz-wt.exe
quarantined_by_task_manager Microsoft® HTML Help Executable hh.exe
quartus Quartus II quartus.exe
quci uci.exe uci.exe
que worship_him.exe worship_him.exe
query SendToPS sendtops.exe
quest Open Legends of Zelda- Zelda Game Creation Tool legends.exe
quest_awt Activeworlds Browser 5.0 aworld.exe
quest-save Quest quest.exe
questsqloptimizer_ora OraOptimizerLauncher oraoptimizerlauncher.exe
queue ORIS Color Tuner ctuner.exe
qui quidamdemo.exe quidamdemo.exe
quickchart Thomson Reuters Eikon 3.2, Eikon Desktop, 3GB eikon.exe
quickverse QV7 MFC Application. QuickVerse 7.01 is a STEP-compatible program used to enhance Bible study and general research. qvwin.exe
quiz Articulate Quizmaker '09 quizmaker.exe
quiztemplate Articulate Quizmaker '09 quizmaker.exe
quo WinSig Application winsig.exe
quosal Quosal.Client quosal.client.exe
quosalgrid Quosal.Client quosal.client.exe
quosalvt Quosal.Client quosal.client.exe
quox File Association Manager fam.exe
qup QuickTime Updater quicktimeupdater.exe
qup~fpap-exl540 FilePtc.exe fileptc.exe
qutgd Microsoft ® Windows Based Script Host wscript.exe
quw Quote MFC Application quote.exe
qv QuickVerse Application qv.exe
qv~ File Association Manager fam.exe
qvc qtreader64.exe qtreader64.exe
qvd File Association Manager fam.exe
qvf JSファイル検索ツール jsfind.exe
qvl QVLIB MFC Application. The QuickVerse Library is a STEP-compatible program used to enhance Bible study and general research. qvlib.exe
qvm File Association Manager fam.exe
qvodcd QvodPlayer qvodplayer.exe
qvoddvd QvodPlayer qvodplayer.exe
qvodmuedia QvodPlayer qvodplayer.exe
qvp viewletbuilder6.exe viewletbuilder6.exe
qvpp File Association Manager fam.exe
qvpx viewletbuilder7.exe viewletbuilder7.exe
qvr ldpyramid.exe ldpyramid.exe
qvt File Association Manager fam.exe
qvw QuickVerse Application qv.exe
qw Quicken Launcher qw.exe
qwan Qure Workload Analyzer workloadanalyzer.exe
qwb Microsoft Money Import Handler mnyimprt.exe
qwc Quickbooks Web Connector qbwebconnector.exe
qwd QuarkXPress 8.12r0 quarkxpress.exe
qwf キューブワード cbword.exe
qwk PowerArchiver 2010 powerarc.exe
qwl QuickWall quickwall.exe
qwmod Quicken Launcher qw.exe
qwq File Association Manager fam.exe
qwriter Question-Writer question-writer.exe
qws wsheet.exe wsheet.exe
qwt QuarkXPress 8.12r0 quarkxpress.exe
qwv Qwizdom WizTeach qwizdom.wizteach.main.exe
qwx キューブワード cbword.exe
qwz ezquake-gl.exe ezquake-gl.exe
qx File Association Manager fam.exe
qxb QuarkXPress 8.12r0 quarkxpress.exe
qxd QuarkXPress 8.12r0 quarkxpress.exe
qxf scalc.exe scalc.exe
qxl QuarkXPress 8.12r0 quarkxpress.exe
qxp QuarkXPress 8.12r0 quarkxpress.exe
qxt QuarkXPress 8.12r0 quarkxpress.exe
qz qmake.exe qmake.exe
qzd Compose or answer questionnaires quiz.exe
qze Compose or answer questionnaires quiz.exe
qzf Compose or answer questionnaires quiz.exe
qzip Quick-ZIP File Manager qzipfm.exe
qzl QuizDesigner Application quizde~1.exe
qzs Compose or answer questionnaires quiz.exe
qzt MindPoint Quiz Show qzshow.exe
qzx Compose or answer questionnaires quiz.exe
qzz QuizDesigner Application quizde~1.exe

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