| type | file extension | Content-Type(Mime-Type) |
| 2003 Excel | .xls | application/vnd.ms-excel |
| 2010 Excel | .xlsx | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| text file | .txt | text/plain |
| picture | .png/.jpg/.gif | image/* |
| page | .htm/.html | text/html |
| video | .avi/ .mpg/ .mpeg/ .mp4 | video/* |
| audio | .mp3/ .wav/ | audio/* |
| application/pdf |
Common content-type correspondence table
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Origin blog.csdn.net/lystest/article/details/131595789
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