En vrac quelques types MIME utilisés :

.docx application/vnd.openxmlformats-officedocument.WordprocessingML.document
.dot application/msword
.dotx application/vnd.openxmlformats-officedocument.wordprocessingml.template
.pot application/mspowerpoint
.potx application/vnd.openxmlformats-officedocument.presentationml.template
.pptx application/vnd.openxmlformats-officedocument.presentationml.Presentation
.xlsx application/vnd.openxmlformats-officedocument.SpreadsheetML.Sheet

KML et KMZ

.kml application/vnd.google-earth.kml+xml
.kmz application/vnd.google-earth.kmz

EXCEL SLK

Pour lire : .slk > application/vnd.ms-excel
Pour upload : .slk > txt/x-slk

SilverLight

.xap application/x-silverlight-app
.xaml application/xaml+xml
.xbap application/x-ms-xbap

epub (pour les ebooks)

application/epub+zip

json

.json application/json

Vidéo

.svg image/svg+xml
.mp4 video/mp4
.webm video/webm