| Extension | File Description |
| .YSK | Uncommon Files |
| .YSL | Uncommon Files |
| .YSM | Uncommon Files |
| .YSN | Uncommon Files |
| .YSO | Uncommon Files |
| .YSP | Raster Image Files |
| .YSQ | Uncommon Files |
| .YSR | Uncommon Files |
| .YSS | Uncommon Files |
| .YST | Uncommon Files |
| .YSU | Uncommon Files |
| .YSV | Uncommon Files |
| .YSW | Uncommon Files |
| .YSX | Uncommon Files |
| .YSY | Uncommon Files |
| .YSZ | Uncommon Files |
| .YT0 | Uncommon Files |
| .YT1 | Uncommon Files |
| .YT2 | Uncommon Files |
| .YT3 | Uncommon Files |
| .YT4 | Uncommon Files |
| .YT5 | Uncommon Files |
| .YT6 | Uncommon Files |
| .YT7 | Uncommon Files |
| .YT8 | Uncommon Files |
| .YT9 | Uncommon Files |
| .YTA | Uncommon Files |
| .YTB | Uncommon Files |
| .YTC | Uncommon Files |
| .YTD | Uncommon Files |
| .YTE | Uncommon Files |
| .YTF | Uncommon Files |
| .YTG | Uncommon Files |
| .YTH | Uncommon Files |
| .YTI | Uncommon Files |
| .YTJ | Uncommon Files |
| .YTK | Uncommon Files |
| .YTL | Uncommon Files |
| .YTM | Uncommon Files |
| .YTN | Uncommon Files |
| .YTO | Uncommon Files |
| .YTP | Uncommon Files |
| .YTQ | Uncommon Files |
| .YTR | Uncommon Files |
| .YTS | Uncommon Files |
| .YTT | Uncommon Files |
| .YTU | Uncommon Files |
| .YTV | Uncommon Files |
| .YTW | Uncommon Files |
| .YTX | Uncommon Files |
| .YTY | Uncommon Files |
| .YTZ | Uncommon Files |
| .YU0 | Uncommon Files |
| .YU1 | Uncommon Files |
| .YU2 | Uncommon Files |
| .YU3 | Uncommon Files |
| .YU4 | Uncommon Files |
| .YU5 | Uncommon Files |
| .YU6 | Uncommon Files |
| .YU7 | Uncommon Files |
| .YU8 | Uncommon Files |
| .YU9 | Uncommon Files |
| .YUA | Uncommon Files |
| .YUB | Uncommon Files |
| .YUC | Uncommon Files |
| .YUD | Uncommon Files |
| .YUE | Uncommon Files |
| .YUF | Uncommon Files |
| .YUG | Uncommon Files |
| .YUH | Uncommon Files |
| .YUI | Uncommon Files |
| .YUJ | Uncommon Files |
| .YUK | Uncommon Files |
| .YUL | Uncommon Files |
| .YUM | Uncommon Files |
| Extension | File Description |
| .YUN | Uncommon Files |
| .YUO | Uncommon Files |
| .YUP | Uncommon Files |
| .YUQ | Uncommon Files |
| .YUR | Uncommon Files |
| .YUS | Uncommon Files |
| .YUT | Uncommon Files |
| .YUU | Uncommon Files |
| .YUV | Video Files |
| .YUV3 | Uncommon Files |
| .YUW | Uncommon Files |
| .YUX | Uncommon Files |
| .YUY | Uncommon Files |
| .YUZ | Uncommon Files |
| .YV | Uncommon Files |
| .YV0 | Uncommon Files |
| .YV1 | Uncommon Files |
| .YV2 | Uncommon Files |
| .YV3 | Uncommon Files |
| .YV4 | Uncommon Files |
| .YV5 | Uncommon Files |
| .YV6 | Uncommon Files |
| .YV7 | Uncommon Files |
| .YV8 | Uncommon Files |
| .YV9 | Uncommon Files |
| .YVA | Uncommon Files |
| .YVB | Uncommon Files |
| .YVC | Uncommon Files |
| .YVD | Uncommon Files |
| .YVE | Uncommon Files |
| .YVF | Uncommon Files |
| .YVG | Uncommon Files |
| .YVH | Uncommon Files |
| .YVI | Uncommon Files |
| .YVJ | Uncommon Files |
| .YVK | Uncommon Files |
| .YVL | Uncommon Files |
| .YVM | Uncommon Files |
| .YVN | Uncommon Files |
| .YVO | Uncommon Files |
| .YVP | Uncommon Files |
| .YVQ | Uncommon Files |
| .YVR | Uncommon Files |
| .YVS | Uncommon Files |
| .YVT | Uncommon Files |
| .YVU | Uncommon Files |
| .YVV | Uncommon Files |
| .YVW | Uncommon Files |
| .YVX | Uncommon Files |
| .YVY | Uncommon Files |
| .YVZ | Uncommon Files |
| .YW0 | Uncommon Files |
| .YW1 | Uncommon Files |
| .YW2 | Uncommon Files |
| .YW3 | Uncommon Files |
| .YW4 | Uncommon Files |
| .YW5 | Uncommon Files |
| .YW6 | Uncommon Files |
| .YW7 | Uncommon Files |
| .YW8 | Uncommon Files |
| .YW9 | Uncommon Files |
| .YWA | Uncommon Files |
| .YWB | Uncommon Files |
| .YWC | Uncommon Files |
| .YWD | Uncommon Files |
| .YWE | Uncommon Files |
| .YWEMANIFES | Uncommon Files |
| .YWF | Uncommon Files |
| .YWG | Uncommon Files |
| .YWH | Uncommon Files |
| .YWI | Uncommon Files |
| .YWJ | Uncommon Files |
| .YWK | Uncommon Files |
| .YWL | Uncommon Files |
| .YWM | Uncommon Files |
