I've opened over a dozen docs of various kinds including formatted
letters, decisions, briefs, foot & end-noted research of both WP for
the Mac and PC, and Nisus 2.5 opened them all without a single hitch.
The formatting is pretty reasonable too (incredibly)... on my setup
anyway (Panther 10.3.8). YMMV but I think most who try it will be
very pleasantly surprised. So far in my own experience, this is the
very best foreign application at decently opening WP docs. This will
save me many hours of reformatting.