I had a user with a file that had a WPD extension. Normally, this would be a WordPerfect file that could easily be opened in Microsoft Office or Open Office or a myriad of other programs. Nothing worked. Instead, all we got was jibberish. I even tried zamzar.com to convert it to Word, and that produced garbage.
After searching the net, I found a program called "Wintext!" Wintext will take ANY file and extract any viable text from it. With that program, I was able to pull out the text the user needed.
The file can be had from here: