| Extension | File Description |
| .Y9S | Uncommon Files |
| .Y9T | Uncommon Files |
| .Y9U | Uncommon Files |
| .Y9V | Uncommon Files |
| .Y9W | Uncommon Files |
| .Y9X | Uncommon Files |
| .Y9Y | Uncommon Files |
| .Y9Z | Uncommon Files |
| .YA0 | Uncommon Files |
| .YA1 | Uncommon Files |
| .YA2 | Uncommon Files |
| .YA3 | Uncommon Files |
| .YA4 | Uncommon Files |
| .YA5 | Uncommon Files |
| .YA6 | Uncommon Files |
| .YA7 | Uncommon Files |
| .YA8 | Uncommon Files |
| .YA9 | Uncommon Files |
| .YAA | Uncommon Files |
| .YAC | Uncommon Files |
| .YAD | Uncommon Files |
| .YAE | Uncommon Files |
| .YAF | Uncommon Files |
| .YAG | Uncommon Files |
| .YAH | Uncommon Files |
| .YAI | Uncommon Files |
| .YAJ | Uncommon Files |
| .YAK | Uncommon Files |
| .YAM | Uncommon Files |
| .YAN | Uncommon Files |
| .YANK | Uncommon Files |
| .YAO | Uncommon Files |
| .YAP | Uncommon Files |
| .YAQ | Uncommon Files |
| .YAR | Uncommon Files |
| .YAS | Uncommon Files |
| .YAT | Uncommon Files |
| .YAU | Uncommon Files |
| .YAV | Uncommon Files |
| .YAW | Uncommon Files |
| .YAX | Uncommon Files |
| .YAY | Uncommon Files |
| .YAZ | Uncommon Files |
| .YB0 | Uncommon Files |
| .YB1 | Uncommon Files |
| .YB2 | Uncommon Files |
| .YB3 | Uncommon Files |
| .YB4 | Uncommon Files |
| .YB5 | Uncommon Files |
| .YB6 | Uncommon Files |
| .YB7 | Uncommon Files |
| .YB8 | Uncommon Files |
| .YB9 | Uncommon Files |
| .YBA | Uncommon Files |
| .YBAK | Uncommon Files |
| .YBB | Uncommon Files |
| .YBC | Uncommon Files |
| .YBD | Uncommon Files |
| .YBE | Uncommon Files |
| .YBF | Uncommon Files |
| .YBG | Uncommon Files |
| .YBH | Uncommon Files |
| .YBHTM | Uncommon Files |
| .YBI | Uncommon Files |
| .YBJ | Uncommon Files |
| .YBL | Uncommon Files |
| .YBM | Uncommon Files |
| .YBN | Uncommon Files |
| .YBO | Uncommon Files |
| .YBP | Uncommon Files |
| .YBQ | Uncommon Files |
| .YBR | Uncommon Files |
| .YBS | Uncommon Files |
| .YBT | Uncommon Files |
| .YBTXT | Uncommon Files |
| Extension | File Description |
| .YBU | Uncommon Files |
| .YBV | Uncommon Files |
| .YBW | Uncommon Files |
| .YBX | Uncommon Files |
| .YBY | Uncommon Files |
| .YBZ | Uncommon Files |
| .YC | Uncommon Files |
| .YC0 | Uncommon Files |
| .YC1 | Uncommon Files |
| .YC2 | Uncommon Files |
| .YC3 | Uncommon Files |
| .YC4 | Uncommon Files |
| .YC5 | Uncommon Files |
| .YC6 | Uncommon Files |
| .YC7 | Uncommon Files |
| .YC8 | Uncommon Files |
| .YC9 | Uncommon Files |
| .YCA | Uncommon Files |
| .YCB | Uncommon Files |
| .YCC | Uncommon Files |
| .YCD | Uncommon Files |
| .YCE | Uncommon Files |
| .YCF | Uncommon Files |
| .YCG | Uncommon Files |
| .YCH | Uncommon Files |
| .YCI | Uncommon Files |
| .YCJ | Uncommon Files |
| .YCK | Uncommon Files |
| .YCL | Uncommon Files |
| .YCM | Uncommon Files |
| .YCN | Uncommon Files |
| .YCO | Uncommon Files |
| .YCP | Uncommon Files |
| .YCQ | Uncommon Files |
| .YCR | Uncommon Files |
| .YCS | Uncommon Files |
| .YCT | Uncommon Files |
| .YCU | Uncommon Files |
| .YCV | Uncommon Files |
| .YCW | Uncommon Files |
| .YCX | Uncommon Files |
| .YCY | Uncommon Files |
| .YCZ | Uncommon Files |
| .YD0 | Uncommon Files |
| .YD1 | Uncommon Files |
| .YD2 | Uncommon Files |
| .YD3 | Uncommon Files |
| .YD4 | Uncommon Files |
| .YD5 | Uncommon Files |
| .YD6 | Uncommon Files |
| .YD7 | Uncommon Files |
| .YD8 | Uncommon Files |
| .YD9 | Uncommon Files |
| .YDA | Uncommon Files |
| .YDB | Uncommon Files |
| .YDD | Uncommon Files |
| .YDE | Uncommon Files |
| .YDF | Uncommon Files |
| .YDG | Uncommon Files |
| .YDH | Uncommon Files |
| .YDI | Uncommon Files |
| .YDJ | Uncommon Files |
| .YDK | Uncommon Files |
| .YDM | Uncommon Files |
| .YDN | Uncommon Files |
| .YDO | Uncommon Files |
| .YDP | Uncommon Files |
| .YDQ | Uncommon Files |
| .YDR | Uncommon Files |
| .YDS | Uncommon Files |
| .YDT | Uncommon Files |
| .YDU | Uncommon Files |
| .YDV | Uncommon Files |
| .YDW | Uncommon Files |
| .YDX | Uncommon Files |
