| Extension | File Description |
| .QOI | Uncommon Files |
| .QOJ | Uncommon Files |
| .QOK | Uncommon Files |
| .QOL | Uncommon Files |
| .QOM | Uncommon Files |
| .QON | Uncommon Files |
| .QOO | Uncommon Files |
| .QOP | Uncommon Files |
| .QOQ | Uncommon Files |
| .QOR | Uncommon Files |
| .QOS | Uncommon Files |
| .QOT | Uncommon Files |
| .QOU | Uncommon Files |
| .QOV | Uncommon Files |
| .QOW | Uncommon Files |
| .QOX | Uncommon Files |
| .QOY | Uncommon Files |
| .QOZ | Uncommon Files |
| .QP0 | Uncommon Files |
| .QP03 | Uncommon Files |
| .QP1 | Uncommon Files |
| .QP2 | Uncommon Files |
| .QP3 | Uncommon Files |
| .QP4 | Uncommon Files |
| .QP5 | Uncommon Files |
| .QP6 | Uncommon Files |
| .QP7 | Uncommon Files |
| .QP8 | Uncommon Files |
| .QP9 | Uncommon Files |
| .QPA | Uncommon Files |
| .QPB | Data Files |
| .QPC | Uncommon Files |
| .QPD | Uncommon Files |
| .QPE | Uncommon Files |
| .QPF | Data Files |
| .QPG | Uncommon Files |
| .QPH | Data Files |
| .QPI | Uncommon Files |
| .QPJ | Uncommon Files |
| .QPK | Uncommon Files |
| .QPL | Uncommon Files |
| .QPM | Uncommon Files |
| .QPN | Uncommon Files |
| .QPO | Uncommon Files |
| .QPP | Uncommon Files |
| .QPQ | Uncommon Files |
| .QPR | Developer Files |
| .QPS | Uncommon Files |
| .QPT | Uncommon Files |
| .QPU | Uncommon Files |
| .QPV | Uncommon Files |
| .QPW | Spreadsheet Files |
| .QPX | Executable Files |
| .QPY | Uncommon Files |
| .QPZ | Uncommon Files |
| .QQ0 | Uncommon Files |
| .QQ1 | Uncommon Files |
| .QQ2 | Uncommon Files |
| .QQ3 | Uncommon Files |
| .QQ4 | Uncommon Files |
| .QQ5 | Uncommon Files |
| .QQ6 | Uncommon Files |
| .QQ7 | Uncommon Files |
| .QQ8 | Uncommon Files |
| .QQ9 | Uncommon Files |
| .QQA | Uncommon Files |
| .QQB | Uncommon Files |
| .QQC | Uncommon Files |
| .QQD | Uncommon Files |
| .QQE | Uncommon Files |
| .QQF | Uncommon Files |
| .QQG | Uncommon Files |
| .QQH | Uncommon Files |
| .QQI | Uncommon Files |
| .QQJ | Uncommon Files |
| Extension | File Description |
| .QQK | Uncommon Files |
| .QQL | Uncommon Files |
| .QQM | Uncommon Files |
| .QQN | Uncommon Files |
| .QQO | Uncommon Files |
| .QQP | Uncommon Files |
| .QQQ | Uncommon Files |
| .QQR | Uncommon Files |
| .QQS | Uncommon Files |
| .QQT | Uncommon Files |
| .QQU | Uncommon Files |
| .QQV | Uncommon Files |
| .QQW | Uncommon Files |
| .QQX | Uncommon Files |
| .QQY | Uncommon Files |
| .QQZ | Uncommon Files |
| .QR0 | Uncommon Files |
| .QR1 | Uncommon Files |
| .QR2 | Uncommon Files |
| .QR3 | Uncommon Files |
| .QR4 | Uncommon Files |
| .QR5 | Uncommon Files |
| .QR6 | Uncommon Files |
| .QR7 | Uncommon Files |
| .QR8 | Uncommon Files |
| .QR9 | Uncommon Files |
| .QRA | Uncommon Files |
| .QRB | Uncommon Files |
| .QRC | Settings Files |
| .QRD | Uncommon Files |
| .QRE | Uncommon Files |
| .QRF | Uncommon Files |
| .QRG | Uncommon Files |
| .QRH | Uncommon Files |
| .QRI | Uncommon Files |
| .QRJ | Uncommon Files |
| .QRK | Uncommon Files |
| .QRL | Uncommon Files |
| .QRM | Web Files |
| .QRN | Uncommon Files |
| .QRO | Uncommon Files |
| .QRP | Data Files |
| .QRQ | Uncommon Files |
| .QRR | Uncommon Files |
| .QRS | Uncommon Files |
| .QRT | Uncommon Files |
| .QRU | Uncommon Files |
| .QRV | Uncommon Files |
| .QRW | Uncommon Files |
| .QRX | Uncommon Files |
| .QRY | Database Files |
| .QRZ | Uncommon Files |
| .QS0 | Uncommon Files |
| .QS1 | Uncommon Files |
| .QS2 | Uncommon Files |
| .QS3 | Uncommon Files |
| .QS4 | Uncommon Files |
| .QS5 | Uncommon Files |
| .QS6 | Uncommon Files |
| .QS7 | Uncommon Files |
| .QS8 | Uncommon Files |
| .QS9 | Uncommon Files |
| .QSA | Uncommon Files |
| .QSB | Uncommon Files |
| .QSC | Uncommon Files |
| .QSD | Data Files |
| .QSE | Uncommon Files |
| .QSF | Backup Files |
| .QSG | Uncommon Files |
| .QSH | Uncommon Files |
| .QSI | Uncommon Files |
| .QSJ | Uncommon Files |
| .QSK | Uncommon Files |
| .QSL | Uncommon Files |
| .QSM | Uncommon Files |
