How can you open documents created in WordPerfect with MS Word?

If you have MS Word 2000 or higher, you’ll be able to open WordPerfect files and if the document was created with WordPerfect 6.0 or later.

To do this, open a blank document in MS Word. Go to the Tools menu and click on Options. Select the General tab and check mark the box that reads “Confirm Conversion at Open.” Then click OK. Open the WordPerfect files and a box will prompt you to choose the conversion. Select WordPerfect 6.×.

Here’s the reference link from Microsoft Tech Support:

I haven’t tested it, but this site claims to be able to convert WordPerfect to Microsoft Word format.