[@Gary]
Gary, did you get this app installed?
I got it installed and tried a batch conversion. First file converted went from 397kb to 6500kb and the text was all in one string? Several more with same result. Dumped it!!!
If you’re still fighting it Id quit and try Calibre ebook manager. It’s also free and does a real fine job.I convert free ebooks from Kindle from and to various formats so if you use ebooks Calibre converts the Kindle format to pdf, txt, mobi, etc.
It’s free take a look……… Google has it…. Calibre download