/usr/share/mimelnk/application/libreoffice-oasis-text-flat-xml.desktop is in libreoffice-common 1:4.3.3-2+deb8u11.
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 | [Desktop Entry]
Version=1.0
Encoding=UTF-8
Hidden=false
Icon=oasis-text
Type=MimeType
Patterns=*.fodt
MimeType=application/vnd.oasis.opendocument.text-flat-xml
Comment=OpenDocument Text (Flat XML)
|