Help needed in reading / converting rgo files
I am really hoping someone can help me with this. I have a couple of ebooks in an rgo file format but thus far have been unable to locate either a way to read them or a way to convert them to another format. I have had a look for the recommended windows reader application but the page is defunct on the official cerience page. Can anyone suggest another way I can read / convert them?
Thank you for any help / advice you can give