.docm:application/vnd.ms-word.document.macroEnabled.12
.docx: application/vnd.openxmlformats-officedocument.wordprocessingml.document
.dotm: application/vnd.ms-word.template.macroEnabled.12
.dotx: application/vnd.openxmlformats-officedocument.wordprocessingml.template
.ppsm: application/vnd.ms-powerpoint.slideshow.macroEnabled.12
.ppsx: application/vnd.openxmlformats-officedocument.presentationml.slideshow
.pptm: application/vnd.ms-powerpoint.presentation.macroEnabled.12
.pptx: application/vnd.openxmlformats-officedocument.presentationml.presentation
.xlsb: application/vnd.ms-excel.sheet.binary.macroEnabled.12
.xlsm: application/vnd.ms-excel.sheet.macroEnabled.12
.xlsx: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.xps: application/vnd.ms-xpsdocument
.potm: application/vnd.ms-powerpoint.template.macroEnabled.12
.potx: application/vnd.openxmlformats-officedocument.presentationml.template
.ppam: application/vnd.ms-powerpoint.addin.macroEnabled.12
.pptm: application/vnd.ms-powerpoint.presentation.macroEnabled.12
.xlam: application/vnd.ms-excel.addin.macroEnabled.12
.xlsb: application/vnd.ms-excel.sheet.binary.macroEnabled.12
.xltm: application/vnd.ms-excel.template.macroEnabled.12
.xltx: application/vnd.openxmlformats-officedocument.spreadsheetml
来源：https://www.cnblogs.com/xyd21c/archive/2013/01/22/2871768.html