Tomcat Mime-type Settings

I recently had a user complain that a 3rd party web application that we support was returning garbage when people try to download Microsoft Office 2007 document types in IE7 (it works fine in Firefox). This particular 3rd party application runs in an Apache Tomcat servlet container. I just updated the server's web.xml file to have the following mime-type mappings:

<mime-mapping>
  <extension>docm</extension>
  <mime-type>application/vnd.ms-word.document.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>docx</extension>
  <mime-type>application/vnd.openxmlformats-officedocument.wordprocessingml.document</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>dotm</extension>
  <mime-type>application/vnd.ms-word.template.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>dotx</extension>
  <mime-type>application/vnd.openxmlformats-officedocument.wordprocessingml.template</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>potm</extension>
  <mime-type>application/vnd.ms-powerpoint.template.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>potx</extension>
  <mime-type>application/vnd.openxmlformats-officedocument.presentationml.template</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>ppam</extension>
  <mime-type>application/vnd.ms-powerpoint.addin.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>ppsm</extension>
  <mime-type>application/vnd.ms-powerpoint.slideshow.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>ppsx</extension>
  <mime-type>application/vnd.openxmlformats-officedocument.presentationml.slideshow</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>pptm</extension>
  <mime-type>application/vnd.ms-powerpoint.presentation.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>pptx</extension>
  <mime-type>application/vnd.openxmlformats-officedocument.presentationml.presentation</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>xlam</extension>
  <mime-type>application/vnd.ms-excel.addin.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>xlsb</extension>
  <mime-type>application/vnd.ms-excel.sheet.binary.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>xlsm</extension>
  <mime-type>application/vnd.ms-excel.sheet.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>xlsx</extension>
  <mime-type>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>xltm</extension>
  <mime-type>application/vnd.ms-excel.template.macroEnabled.12</mime-type>
</mime-mapping>
<mime-mapping>
  <extension>xltx</extension>
  <mime-type>application/vnd.openxmlformats-officedocument.spreadsheetml.template</mime-type>
</mime-mapping>