| Extension | File Description |
| .C3U | Uncommon Files |
| .C3V | Uncommon Files |
| .C3W | Uncommon Files |
| .C3X | Uncommon Files |
| .C3Y | Uncommon Files |
| .C3Z | Uncommon Files |
| .C4 | Raster Image Files |
| .C40 | Uncommon Files |
| .C41 | Uncommon Files |
| .C42 | Uncommon Files |
| .C43 | Uncommon Files |
| .C44 | Uncommon Files |
| .C45 | Uncommon Files |
| .C46 | Uncommon Files |
| .C47 | Uncommon Files |
| .C48 | Uncommon Files |
| .C49 | Uncommon Files |
| .C4A | Uncommon Files |
| .C4B | Uncommon Files |
| .C4C | Uncommon Files |
| .C4D | 3D Image Files |
| .C4E | Uncommon Files |
| .C4F | Uncommon Files |
| .C4G | Uncommon Files |
| .C4H | Uncommon Files |
| .C4I | Uncommon Files |
| .C4J | Uncommon Files |
| .C4K | Uncommon Files |
| .C4L | Uncommon Files |
| .C4M | Uncommon Files |
| .C4N | Uncommon Files |
| .C4O | Uncommon Files |
| .C4P | Uncommon Files |
| .C4Q | Uncommon Files |
| .C4R | Uncommon Files |
| .C4S | Uncommon Files |
| .C4T | Uncommon Files |
| .C4U | Game Files |
| .C4V | Uncommon Files |
| .C4W | Uncommon Files |
| .C4X | Uncommon Files |
| .C4Y | Uncommon Files |
| .C4Z | Uncommon Files |
| .C50 | Uncommon Files |
| .C51 | Uncommon Files |
| .C52 | Uncommon Files |
| .C53 | Uncommon Files |
| .C54 | Uncommon Files |
| .C55 | Uncommon Files |
| .C56 | Uncommon Files |
| .C57 | Uncommon Files |
| .C58 | Uncommon Files |
| .C59 | Uncommon Files |
| .C5A | Uncommon Files |
| .C5B | Uncommon Files |
| .C5C | Uncommon Files |
| .C5D | Uncommon Files |
| .C5E | Uncommon Files |
| .C5F | Uncommon Files |
| .C5G | Uncommon Files |
| .C5H | Uncommon Files |
| .C5I | Uncommon Files |
| .C5J | Uncommon Files |
| .C5K | Uncommon Files |
| .C5L | Uncommon Files |
| .C5M | Uncommon Files |
| .C5N | Uncommon Files |
| .C5O | Uncommon Files |
| .C5P | Uncommon Files |
| .C5Q | Uncommon Files |
| .C5R | Uncommon Files |
| .C5S | Uncommon Files |
| .C5T | Uncommon Files |
| .C5U | Uncommon Files |
| .C5V | Uncommon Files |
| Extension | File Description |
| .C5W | Uncommon Files |
| .C5X | Uncommon Files |
| .C5Y | Uncommon Files |
| .C5Z | Uncommon Files |
| .C6 | Uncommon Files |
| .C60 | Uncommon Files |
| .C61 | Uncommon Files |
| .C62 | Uncommon Files |
| .C63 | Uncommon Files |
| .C64 | Uncommon Files |
| .C65 | Uncommon Files |
| .C66 | Uncommon Files |
| .C67 | Uncommon Files |
| .C68 | Uncommon Files |
| .C69 | Uncommon Files |
| .C6A | Uncommon Files |
| .C6B | Uncommon Files |
| .C6C | Uncommon Files |
| .C6D | Uncommon Files |
| .C6E | Uncommon Files |
| .C6F | Uncommon Files |
| .C6G | Uncommon Files |
| .C6H | Uncommon Files |
| .C6I | Uncommon Files |
| .C6J | Uncommon Files |
| .C6K | Uncommon Files |
| .C6L | Uncommon Files |
| .C6M | Uncommon Files |
| .C6N | Uncommon Files |
| .C6O | Uncommon Files |
| .C6P | Uncommon Files |
| .C6Q | Uncommon Files |
| .C6R | Uncommon Files |
| .C6S | Uncommon Files |
| .C6T | Uncommon Files |
| .C6U | Uncommon Files |
| .C6V | Uncommon Files |
| .C6W | Uncommon Files |
| .C6X | Uncommon Files |
| .C6Y | Uncommon Files |
| .C6Z | Uncommon Files |
| .C70 | Uncommon Files |
| .C71 | Uncommon Files |
| .C72 | Uncommon Files |
| .C73 | Uncommon Files |
| .C74 | Uncommon Files |
| .C75 | Uncommon Files |
| .C76 | Uncommon Files |
| .C77 | Uncommon Files |
| .C78 | Uncommon Files |
| .C79 | Uncommon Files |
| .C7A | Uncommon Files |
| .C7B | Uncommon Files |
| .C7C | Uncommon Files |
| .C7D | Uncommon Files |
| .C7E | Uncommon Files |
| .C7F | Uncommon Files |
| .C7G | Uncommon Files |
| .C7H | Uncommon Files |
| .C7I | Uncommon Files |
| .C7J | Uncommon Files |
| .C7K | Uncommon Files |
| .C7L | Uncommon Files |
| .C7M | Uncommon Files |
| .C7N | Uncommon Files |
| .C7O | Uncommon Files |
| .C7P | Uncommon Files |
| .C7Q | Uncommon Files |
| .C7R | Uncommon Files |
| .C7S | Uncommon Files |
| .C7T | Uncommon Files |
| .C7U | Uncommon Files |
| .C7V | Uncommon Files |
| .C7W | Uncommon Files |
| .C7X | Uncommon Files |
