| Extension | File Description |
| .Y8A | Uncommon Files |
| .Y8B | Uncommon Files |
| .Y8C | Uncommon Files |
| .Y8D | Uncommon Files |
| .Y8E | Uncommon Files |
| .Y8F | Uncommon Files |
| .Y8G | Uncommon Files |
| .Y8H | Uncommon Files |
| .Y8I | Uncommon Files |
| .Y8J | Uncommon Files |
| .Y8K | Uncommon Files |
| .Y8L | Uncommon Files |
| .Y8M | Uncommon Files |
| .Y8N | Uncommon Files |
| .Y8O | Uncommon Files |
| .Y8P | Uncommon Files |
| .Y8Q | Uncommon Files |
| .Y8R | Uncommon Files |
| .Y8S | Uncommon Files |
| .Y8T | Uncommon Files |
| .Y8U | Uncommon Files |
| .Y8V | Uncommon Files |
| .Y8W | Uncommon Files |
| .Y8X | Uncommon Files |
| .Y8Y | Uncommon Files |
| .Y8Z | Uncommon Files |
| .Y90 | Uncommon Files |
| .Y91 | Uncommon Files |
| .Y92 | Uncommon Files |
| .Y93 | Uncommon Files |
| .Y94 | Uncommon Files |
| .Y95 | Uncommon Files |
| .Y96 | Uncommon Files |
| .Y97 | Uncommon Files |
| .Y98 | Uncommon Files |
| .Y99 | Uncommon Files |
| .Y9A | Uncommon Files |
| .Y9B | Uncommon Files |
| .Y9C | Uncommon Files |
| .Y9D | Uncommon Files |
| .Y9E | Uncommon Files |
| .Y9F | Uncommon Files |
| .Y9G | Uncommon Files |
| .Y9H | Uncommon Files |
| .Y9I | Uncommon Files |
| .Y9J | Uncommon Files |
| .Y9K | Uncommon Files |
| .Y9L | Uncommon Files |
| .Y9M | Uncommon Files |
| .Y9N | Uncommon Files |
| .Y9O | Uncommon Files |
| .Y9P | Uncommon Files |
| .Y9Q | Uncommon Files |
| .Y9R | Uncommon Files |
| .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 |
| .YAB | Developer Files |
| .YAC | Uncommon Files |
| Extension | File Description |
| .YAD | Uncommon Files |
| .YAE | Uncommon Files |
| .YAF | Uncommon Files |
| .YAG | Uncommon Files |
| .YAH | Uncommon Files |
| .YAI | Uncommon Files |
| .YAJ | Uncommon Files |
| .YAK | Uncommon Files |
| .YAL | Vector Image Files |
| .YAM | Uncommon Files |
| .YAML | Developer Files |
| .YAN | Uncommon Files |
| .YANG | Data 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 |
| .YBK | Misc 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 |
| .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 |
