| Extension | File Description |
| .UUK | Uncommon Files |
| .UUL | Uncommon Files |
| .UUM | Uncommon Files |
| .UUN | Uncommon Files |
| .UUO | Uncommon Files |
| .UUP | Uncommon Files |
| .UUQ | Uncommon Files |
| .UUR | Uncommon Files |
| .UUS | Uncommon Files |
| .UUT | Uncommon Files |
| .UUU | Uncommon Files |
| .UUV | Uncommon Files |
| .UUW | Uncommon Files |
| .UUX | Uncommon Files |
| .UUY | Uncommon Files |
| .UUZ | Uncommon Files |
| .UV | Uncommon Files |
| .UV0 | Uncommon Files |
| .UV1 | Uncommon Files |
| .UV2 | Uncommon Files |
| .UV3 | Uncommon Files |
| .UV4 | Uncommon Files |
| .UV5 | Uncommon Files |
| .UV6 | Uncommon Files |
| .UV7 | Uncommon Files |
| .UV8 | Uncommon Files |
| .UV9 | Uncommon Files |
| .UVB | Uncommon Files |
| .UVC | Uncommon Files |
| .UVE | Uncommon Files |
| .UVJ | Uncommon Files |
| .UVK | Uncommon Files |
| .UVL | Uncommon Files |
| .UVN | Uncommon Files |
| .UVO | Uncommon Files |
| .UVP | Uncommon Files |
| .UVQ | Uncommon Files |
| .UVR | Uncommon Files |
| .UVV | Uncommon Files |
| .UVW | Uncommon Files |
| .UVY | Uncommon Files |
| .UW0 | Uncommon Files |
| .UW1 | Uncommon Files |
| .UW2 | Uncommon Files |
| .UW3 | Uncommon Files |
| .UW4 | Uncommon Files |
| .UW5 | Uncommon Files |
| .UW6 | Uncommon Files |
| .UW7 | Uncommon Files |
| .UW8 | Uncommon Files |
| .UW9 | Uncommon Files |
| .UWA | Uncommon Files |
| .UWB | Uncommon Files |
| .UWC | Uncommon Files |
| .UWD | Uncommon Files |
| .UWE | Uncommon Files |
| .UWG | Uncommon Files |
| .UWH | Uncommon Files |
| .UWI | Uncommon Files |
| .UWJ | Uncommon Files |
| .UWK | Uncommon Files |
| .UWM | Uncommon Files |
| .UWN | Uncommon Files |
| .UWO | Uncommon Files |
| .UWP | Uncommon Files |
| .UWQ | Uncommon Files |
| .UWR | Uncommon Files |
| .UWS | Uncommon Files |
| .UWT | Uncommon Files |
| .UWU | Uncommon Files |
| .UWV | Uncommon Files |
| .UWW | Uncommon Files |
| .UWX | Uncommon Files |
| .UWY | Uncommon Files |
| .UWZ | Uncommon Files |
| Extension | File Description |
| .UX | Uncommon Files |
| .UX0 | Uncommon Files |
| .UX1 | Uncommon Files |
| .UX2 | Uncommon Files |
| .UX3 | Uncommon Files |
| .UX4 | Uncommon Files |
| .UX5 | Uncommon Files |
| .UX6 | Uncommon Files |
| .UX7 | Uncommon Files |
| .UX8 | Uncommon Files |
| .UX9 | Uncommon Files |
| .UXA | Uncommon Files |
| .UXB | Uncommon Files |
| .UXC | Uncommon Files |
| .UXD | Uncommon Files |
| .UXE | Uncommon Files |
| .UXF | Uncommon Files |
| .UXG | Uncommon Files |
| .UXH | Uncommon Files |
| .UXI | Uncommon Files |
| .UXJ | Uncommon Files |
| .UXK | Uncommon Files |
| .UXL | Uncommon Files |
| .UXM | Uncommon Files |
| .UXN | Uncommon Files |
| .UXO | Uncommon Files |
| .UXP | Uncommon Files |
| .UXQ | Uncommon Files |
| .UXR | Uncommon Files |
| .UXS | Uncommon Files |
| .UXT | Uncommon Files |
| .UXU | Uncommon Files |
| .UXV | Uncommon Files |
| .UXW | Uncommon Files |
| .UXY | Uncommon Files |
| .UXZ | Uncommon Files |
| .UY0 | Uncommon Files |
| .UY1 | Uncommon Files |
| .UY2 | Uncommon Files |
| .UY3 | Uncommon Files |
| .UY4 | Uncommon Files |
| .UY5 | Uncommon Files |
| .UY6 | Uncommon Files |
| .UY7 | Uncommon Files |
| .UY8 | Uncommon Files |
| .UY9 | Uncommon Files |
| .UYA | Uncommon Files |
| .UYB | Uncommon Files |
| .UYC | Uncommon Files |
| .UYD | Uncommon Files |
| .UYE | Uncommon Files |
| .UYF | Uncommon Files |
| .UYG | Uncommon Files |
| .UYH | Uncommon Files |
| .UYI | Uncommon Files |
| .UYJ | Uncommon Files |
| .UYK | Uncommon Files |
| .UYL | Uncommon Files |
| .UYM | Uncommon Files |
| .UYN | Uncommon Files |
| .UYO | Uncommon Files |
| .UYP | Uncommon Files |
| .UYQ | Uncommon Files |
| .UYR | Uncommon Files |
| .UYS | Uncommon Files |
| .UYT | Uncommon Files |
| .UYU | Uncommon Files |
| .UYV | Uncommon Files |
| .UYVY | Uncommon Files |
| .UYW | Uncommon Files |
| .UYX | Uncommon Files |
| .UYY | Uncommon Files |
| .UYZ | Uncommon Files |
| .UZ | Uncommon Files |
| .UZ0 | Uncommon Files |
