LibreOffice handles WordPerfect data files and templates. https://ask.libreoffice.org/t/can-libreoffice-open-wordperfe...

HSTRIP will strip out ASCII values from a WordPerfect data file if it is corrupt or incompatible you just have to reformat the text. https://sourceforge.net/projects/hstrip/

Ongoing related thread:

WordPerfect for UNIX (1992) - https://news.ycombinator.com/item?id=32140122 - July 2022 (83 comments)