Here is a list of content types
Ext | MIME Type |
.doc | application/msword |
.dot | application/msword |
.docx | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
.dotx | application/vnd.openxmlformats-officedocument.wordprocessingml.template |
.docm | application/vnd.ms-word.document.macroEnabled.12 |
.dotm | application/vnd.ms-word.template.macroEnabled.12 |
.xls | application/vnd.ms-excel |
.xlt | application/vnd.ms-excel |
.xla | application/vnd.ms-excel |
.xlsx | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
.xltx | application/vnd.openxmlformats-officedocument.spreadsheetml.template |
.xlsm | application/vnd.ms-excel.sheet.macroEnabled.12 |
.xltm | application/vnd.ms-excel.template.macroEnabled.12 |
.xlam | application/vnd.ms-excel.addin.macroEnabled.12 |
.xlsb | application/vnd.ms-excel.sheet.binary.macroEnabled.12 |
.ppt | application/vnd.ms-powerpoint |
.pot | application/vnd.ms-powerpoint |
.pps | application/vnd.ms-powerpoint |
.ppa | application/vnd.ms-powerpoint |
.pptx | application/vnd.openxmlformats-officedocument.presentationml.presentation |
.potx | application/vnd.openxmlformats-officedocument.presentationml.template |
.ppsx | application/vnd.openxmlformats-officedocument.presentationml.slideshow |
.ppam | application/vnd.ms-powerpoint.addin.macroEnabled.12 |
.pptm | application/vnd.ms-powerpoint.presentation.macroEnabled.12 |
.potm | application/vnd.ms-powerpoint.presentation.macroEnabled.12 |
.ppsm | application/vnd.ms-powerpoint.slideshow.macroEnabled.12 |