Corel help desk tells me that it is available in the App Store. There is no trace of it in "Google Play," where my LG V20 goes for buying Apps. Please help.
I believe the app WPS can open those files. WPD is not a common format, but I think the most popular 'Office' replacements can handle them. Just remember that some apps might not be available to older OS versions or due to regional restrictions.
You may want to try OOReader. Just rename the files as .odt files and read them and, after a few seconds, they should convert. (Complex tables may not, but everything else should.)