Hi and welcome to the forum!
The Word perfect filters were removed because of licensing issues. See this discussion Problem opening WPD files in OpenOffice 3.4
for a solution.
Please add '[Solved]' at the beginning of your first post
title (edit button
) if your issue has been fixed.
AOO 4.1.2 on Xubuntu 16.04, (Xenial Xerus) and PortableApps port 4.1.2 on Windows 7