| qfp | Intuit Quicken Financial Planner Data |
| qft | QF-Test Data |
| qfx | Quicken Financial Exchange Data |
| qfx | QuickShow FX Data |
| qgd | Shimadzu GCMS Data |
| qhf | QIP Saved History Data |
| qhi | Intuit Quicken Home Inventory Data |
| qi | Rsyslog Queue Info |
| qia | Wonderware QI Analyst Data |
| qib | Intuit Quicken QIB Backup Data |
| qif | Quicken Interchange Format Data |
| qin | CARE-S InfoWorks Inflow Data |
| qip | QIP Infium Account Data |
| qit | CRYSFIRE Qdat Targeted Input Data |
| qix | Intuit Quicken for DOS Index File |
| qiz | Scientific WorkPlace Exam Builder Quiz Document |
| qkpt | KaleidaGraph Data |
| qkr | IBM Lotus Quickr Attachment Link Data |
| qkt | Microsoft Works QKT Data |
| ql | QEdit Data |
| qlc | Adobe Type Manager Type1 Fonts Script |
| qld | MassLynx Quantation Data |
| qlgenerator | Quick Look Generator Data |
| qli | Statler Stitcher Pattern |
| qlm | QuickField LabelMover Script |
| qlog | QUIC Endpoint Log |
| qlv | QGis LayerVersion Edit |
| qm3 | Articulate Quizmaker Compressed Data |
| qmb | Quick Menu Builder Saved Data |
| qmbl | LabQuest Results Data |
