| The File Extension | Mime Type |
| .w3g File Extension | application/octet-stream |
| .w3m File Extension | application/octet-stream |
| .wad File Extension | application/octet-stream |
| .wtp File Extension | application/octet-stream |
| .wx File Extension | application/octet-stream |
| .xwi File Extension | application/octet-stream |
| .z2f File Extension | application/octet-stream |
| .ztd File Extension | application/octet-stream |