Only application/msword is officially registered at IANA, it's an exception

http://www.iana.org/assignments/media-types/application/msword
http://www.iana.org/assignments/media-types/application/vnd.ms-excel
http://www.iana.org/assignments/media-types/application/vnd.ms-powerpoint

apache tika has an alias vnd.ms-word for msword mime type org/apache/tika/mime/tika-mimetypes.xml

But I believe MSOfficeMetadataSequencer should check for application/msword, not application/vnd.ms-word

it is not even in ./modeshape-common/src/main/resources/org/modeshape/mime.types