However, you can purchase Corel's WordPerfect Office suite, which includes Quattro Pro, or download a 30-day free trial from Corel, and then use the program itself to convert any of its files ...

Quattro Pro is a powerful ... processor and Corel Draw graphics program. Excel formerly imported some Quattro files directly, but this functionality was dropped in Office 2010. Free office suites ...

Quattro Pro was originally developed by Borland, then purchased by Novell in 1994 and Corel in 1996. Initially sold as a separate program, Quattro Pro was later added to Corel's WordPerfect Office ...