常用文件ID对照表
| 文件后缀 | 类型标识 | ContentType |
| JPG | 255216 | application/x-jpg |
| GIF | 7173 | image/gif |
| BMP | 6677 | application/x-bmp |
| PNG | 13780 | application/x-png |
| WEBP | 8273 | application/x-webp |
| COM | 7790 | application/x-msdownload |
| EXE | 7790 | application/x-msdownload |
| DLL | 7790 | application/x-msdownload |
| RAR | 8297 | application/vnd.rar |
| ZIP | 8075 | application/zip |
| XML | 6063 | text/xml |
| HTML | 6033 | text/html |
| ASPX | 239187 | text/asp |
| CS | 117115 | |
| JS | 119105 | application/ecmascript |
| TXT | 210187 | text/plain |
| SQL | 255254 | text/plain |
| BAT | 64101 | |
| BTSEED | 10056 | |
| RDP | 255254 | |
| PSD | 5666 | |
| 3780 | application/pdf | |
| CHM | 7384 | |
| LOG | 70105 | |
| REG | 8269 | |
| HLP | 6395 | |
| DOC | 208207 | application/msword |
| XLS | 208207 | application/vnd.ms-excel |
| DOCX | 8075 | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| XLSX | 8075 | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |