| Extension | File Description |
| .AI2 | Uncommon Files |
| .AI3 | Uncommon Files |
| .AI4 | Uncommon Files |
| .AI5 | Uncommon Files |
| .AI6 | Uncommon Files |
| .AI7 | Uncommon Files |
| .AI8 | Uncommon Files |
| .AI9 | Uncommon Files |
| .AIA | Uncommon Files |
| .AIB | Uncommon Files |
| .AIC | Raster Image Files |
| .AID | Uncommon Files |
| .AIE | Uncommon Files |
| .AIF | Audio Files |
| .AIFC | Audio Files |
| .AIFF | Audio Files |
| .AIG | Uncommon Files |
| .AIH | Uncommon Files |
| .AII | Uncommon Files |
| .AIJ | Uncommon Files |
| .AIK | Uncommon Files |
| .AIL | Uncommon Files |
| .AIM | Text Files |
| .AIML | Uncommon Files |
| .AIN | Compressed Files |
| .AINSO | Uncommon Files |
| .AIO | Uncommon Files |
| .AIP | Plugin Files |
| .AIQ | Uncommon Files |
| .AIR | Executable Files |
| .AIRPORT | Uncommon Files |
| .AIRPORTS | Uncommon Files |
| .AIS | Audio Files |
| .AIT | Settings Files |
| .AIU | Uncommon Files |
| .AIV | Data Files |
| .AIW | Uncommon Files |
| .AIX | Uncommon Files |
| .AIY | Uncommon Files |
| .AIZ | Uncommon Files |
| .AJ0 | Uncommon Files |
| .AJ1 | Uncommon Files |
| .AJ2 | Uncommon Files |
| .AJ3 | Uncommon Files |
| .AJ4 | Uncommon Files |
| .AJ5 | Uncommon Files |
| .AJ6 | Uncommon Files |
| .AJ7 | Uncommon Files |
| .AJ8 | Uncommon Files |
| .AJ9 | Uncommon Files |
| .AJA | Uncommon Files |
| .AJB | Uncommon Files |
| .AJC | Uncommon Files |
| .AJD | Uncommon Files |
| .AJE | Uncommon Files |
| .AJF | Uncommon Files |
| .AJG | Uncommon Files |
| .AJH | Uncommon Files |
| .AJI | Uncommon Files |
| .AJJ | Uncommon Files |
| .AJK | Uncommon Files |
| .AJL | Uncommon Files |
| .AJM | Uncommon Files |
| .AJN | Uncommon Files |
| .AJO | Uncommon Files |
| .AJP | Video Files |
| .AJQ | Uncommon Files |
| .AJR | Uncommon Files |
| .AJS | Uncommon Files |
| .AJT | Uncommon Files |
| .AJU | Uncommon Files |
| .AJV | Uncommon Files |
| .AJW | Uncommon Files |
| .AJX | Uncommon Files |
| .AJY | Uncommon Files |
| Extension | File Description |
| .AJZ | Uncommon Files |
| .AK | Uncommon Files |
| .AK0 | Uncommon Files |
| .AK1 | Uncommon Files |
| .AK2 | Uncommon Files |
| .AK3 | Uncommon Files |
| .AK4 | Uncommon Files |
| .AK5 | Uncommon Files |
| .AK6 | Uncommon Files |
| .AK7 | Uncommon Files |
| .AK8 | Uncommon Files |
| .AK9 | Uncommon Files |
| .AKA | Uncommon Files |
| .AKB | Uncommon Files |
| .AKC | Uncommon Files |
| .AKD | Uncommon Files |
| .AKE | Uncommon Files |
| .AKF | Uncommon Files |
| .AKG | Uncommon Files |
| .AKH | Uncommon Files |
| .AKI | Uncommon Files |
| .AKJ | Uncommon Files |
| .AKK | Uncommon Files |
| .AKL | Uncommon Files |
| .AKM | Uncommon Files |
| .AKN | Uncommon Files |
| .AKO | Uncommon Files |
| .AKP | Uncommon Files |
| .AKQ | Uncommon Files |
| .AKR | Uncommon Files |
| .AKS | Uncommon Files |
| .AKT | Uncommon Files |
| .AKU | Uncommon Files |
| .AKV | Uncommon Files |
| .AKW | Uncommon Files |
| .AKX | Uncommon Files |
| .AKY | Uncommon Files |
| .AKZ | Uncommon Files |
| .AL | Audio Files |
| .AL$ | Uncommon Files |
| .AL0 | Uncommon Files |
| .AL1 | Uncommon Files |
| .AL2 | Uncommon Files |
| .AL3 | Uncommon Files |
| .AL4 | Uncommon Files |
| .AL5 | Uncommon Files |
| .AL6 | Uncommon Files |
| .AL7 | Uncommon Files |
| .AL8 | Uncommon Files |
| .AL9 | Uncommon Files |
| .ALA | Uncommon Files |
| .ALANIS | Uncommon Files |
| .ALARMZ | Uncommon Files |
| .ALAW | Audio Files |
| .ALB | Developer Files |
| .ALBINON | Uncommon Files |
| .ALBM | Raster Image Files |
| .ALC | Data Files |
| .ALD | Data Files |
| .ALDOC | Uncommon Files |
| .ALDRIN | Uncommon Files |
| .ALE | Video Files |
| .ALERT | Uncommon Files |
| .ALF | Database Files |
| .ALG | Uncommon Files |
| .ALH | Uncommon Files |
| .ALI | Data Files |
| .ALIAS | Uncommon Files |
| .ALIASES | Uncommon Files |
| .ALIEN | Uncommon Files |
| .ALIEN1 | Uncommon Files |
| .ALIGN | Uncommon Files |
| .ALJ | Uncommon Files |
| .ALK | Uncommon Files |
| .ALL | Audio Files |
