| qos | Lotus Notes Full Text Index |
| qot | Sierra Print Artist Quotes Data |
| qp | x265 Quantization Parameters Data |
| qp1 | QuickPAR Cache Data |
| qp2 | QuickPAR Cache Data |
| qpa | Khronos Vulkan Conformance Test Log |
| qpb | Intuit QuickBooks Point of Sale Data |
| qpb | Intuit Quicken Payroll Data |
| qpd | Intuit QuickPay for Windows Data |
| qpg | Intuit QuickBooks Page Data |
| qph | Intuit Quicken Price History |
| qpi | Intuit Quicken 3 for Windows Data |
| qpl | KaleidaGraph Layout |
| qps | Timeasure Data |
| qpst | Qualcomm QPST Data |
| qpt | QUANTA Plot Data |
| qpx | Corel Quattro Pro QuickColumn Settings Data |
| qpx | Quattro Pro QuickColumn Settings Data |
| qqc | Quanquest Questionnaire Script Data |
| qqe | Quick Quote Data |
| qqi | Quanquest Defined Response Lists Data |
| qr2 | Delphi Database Quick Report |
| qrc | QuarkXPress Required Component Data |
| qrd | BI/Query Result Set Data |
| qrf | QR Designer Form Data |
| qrl | QF-Test Run Log |
| qrm | Qworum Message |
| qrmx | Quick Risk Matrix Data |
| qrn | Eroff QRN Macro Package |
| qro | MultiWell Quantized Rotation Data |
| qrp | COW2000 Report |
| qrp | Dr. Hardware QuickReport Data |
| qrp | Gupta Report Builder Data |
| qrq | Q&R Workstation Query Definition |
| qrr | BI/Query Result Set Informations |
