After reading through your PDF file again I now understand the problem. Xubunbu ships with a custom mimeapps.list file [1] which has various types associated with LibreOffice programs, so installing LibreOffice6.1 will not override those. The solution for this is easy: remove the preinstalled LibreOffice.
Furthermore, entries containing "macroEnabled" probably need to be changed to lowercase-only [2]. [1] https://git.launchpad.net/xubuntu-default-settings/tree/usr/share/xubuntu/applications/defaults.list [2] https://bugs.freedesktop.org/show_bug.cgi?id=88004 ** Bug watch added: freedesktop.org Bugzilla #88004 https://bugs.freedesktop.org/show_bug.cgi?id=88004 ** Package changed: xfce4-settings (Ubuntu) => xubuntu-default-settings (Ubuntu) ** Changed in: xubuntu-default-settings (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Xubuntu Developers, which is subscribed to xubuntu-default-settings in Ubuntu. Matching subscriptions: xubuntu-default-settings https://bugs.launchpad.net/bugs/1802582 Title: Inconsistency in xfce4-mime-settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xubuntu-default-settings/+bug/1802582/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~xubuntu-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~xubuntu-dev More help : https://help.launchpad.net/ListHelp

