How to convert .wp6 files to .doc format.
Converting WordPerfect 6 Documents directly to Microsoft Word Documents (.wp6 to .doc conversion) is super straightforward and can be done using the original software, Corel WordPerfect. It allows users to import WordPerfect documents from older versions and re-save them as MS Word documents.
Alternatively, you can try using third-party solutions, such as LibreOffice, for instance, which should also be capable to convert .wp6 to .doc.
Corel WordPerfect is word processor for Microsoft Windows
An open source personal productivity suite for Windows, Macintosh and GNU/Linux