/usr/share/gconf/schemas/ooo-thumbnailer.schemas is in ooo-thumbnailer 0.2-5ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92  | <gconfschemafile>
<schemalist>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/enable</key>
  <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/enable</applyto>
  <owner>ooo-thumbnailer</owner>
  <type>bool</type>
  <default>true</default>
  <locale name="C">
   <short/>
   <long/>
  </locale>
 </schema>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/command</key>
   <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.text/command</applyto>
   <owner>ooo-thumbnailer</owner>
   <type>string</type>
   <default>/usr/bin/ooo-thumbnailer %i %o %s</default>
   <locale name="C">
    <short/>
    <long/>
   </locale>
 </schema>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/enable</key>
  <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/enable</applyto>
  <owner>ooo-thumbnailer</owner>
  <type>bool</type>
  <default>true</default>
  <locale name="C">
   <short/>
   <long/>
  </locale>
 </schema>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/command</key>
   <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.graphics/command</applyto>
   <owner>ooo-thumbnailer</owner>
   <type>string</type>
   <default>/usr/bin/ooo-thumbnailer %i %o %s</default>
   <locale name="C">
    <short/>
    <long/>
   </locale>
 </schema>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/enable</key>
  <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/enable</applyto>
  <owner>ooo-thumbnailer</owner>
  <type>bool</type>
  <default>true</default>
  <locale name="C">
   <short/>
   <long/>
  </locale>
 </schema>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/command</key>
   <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.presentation/command</applyto>
   <owner>ooo-thumbnailer</owner>
   <type>string</type>
   <default>/usr/bin/ooo-thumbnailer %i %o %s</default>
   <locale name="C">
    <short/>
    <long/>
   </locale>
 </schema>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/enable</key>
  <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/enable</applyto>
  <owner>ooo-thumbnailer</owner>
  <type>bool</type>
  <default>true</default>
  <locale name="C">
   <short/>
   <long/>
  </locale>
 </schema>
 <schema>
  <key>/schemas/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/command</key>
   <applyto>/desktop/gnome/thumbnailers/application@vnd.oasis.opendocument.spreadsheet/command</applyto>
   <owner>ooo-thumbnailer</owner>
   <type>string</type>
   <default>/usr/bin/ooo-thumbnailer %i %o %s</default>
   <locale name="C">
    <short/>
    <long/>
   </locale>
 </schema>
</schemalist>
</gconfschemafile>
 |