2 ".doc" => "application/msword",
3 ".docx" => "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
4 ".dotx" => "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
5 ".potx" => "application/vnd.openxmlformats-officedocument.presentationml.template",
6 ".ppsx" => "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
7 ".ppt" => "application/vnd.ms-powerpoint",
8 ".pptx" => "application/vnd.openxmlformats-officedocument.presentationml.presentation",
9 ".rtf" => "application/rtf",
10 ".sldx" => "application/vnd.openxmlformats-officedocument.presentationml.slide",
11 ".xls" => "application/vnd.ms-excel",
12 ".xlsx" => "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
13 ".xltx" => "application/vnd.openxmlformats-officedocument.spreadsheetml.template",