alonso laurent - 2020-03-25

Hello M.MKZEE,
LibreOffice(free) does include libwpg, so the easier method is clearly to install it and test if it can convert your documents correctly.

If not, you can find some indications on https://wiki.documentfoundation.org/DLP/Libraries, ie. you must first retrieve and compile librevenge: https://sourceforge.net/p/libwpd/wiki/librevenge/ ; then you will be able to compile libwpg and then writerperfect, it must be relatively easy to do that on MacOs/Linux (but probably more difficult on Windows, ...)