/usr/lib/x86_64-linux-gnu/libTKXml.so.8 is in liboce-ocaf8 0.15-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libTKXml.so.8.0.0
/usr/lib/x86_64-linux-gnu/libTKXml.so.8.0.0