A lot of application/msword files I have start with this magic: <match value="\320\317\021\340\241\261" type="string" offset="0"/> Without this, the msword files are not properly detected. With this change, they are detected correctly. This magic is also used in KDE KMimeMagic database (/usr/share/mimelnk/magic).
That's actually the magic for application/x-ole-storage, which can also be an Excel file, or a whole load of others.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.