I have no idea what has been done up to this point (and wouldn't be
surprised if some of the previous actions may have caused new problems),
Oops. By that I meant the original reinstallation of office, reinstalling
the font book, and messing about with the office font folder, all of which
seem likely to me to leave orphaned files around to cause issues. That
wasn't a reference to Corentin's advice to trash the Office font cache,
which is a good troubleshooting tip.
Certainly, for future reference, iMV,
I reinstalled office from the disk but this does not seem to be the
problem.
Reinstalling from the disk never helps, just about. Reinstalling office
doesn't clean up anything unless you run the Remove Office tool first,
anyhow.
Daiya