WordPerfect can actually save in Word format better than Word can. If you try to save Word document in Word as an older version of Word, it actually saves it as a Rich Text Format document, not Word. But WordPerfect can save a document in an old Word format for real.

WordPerfect can properly open and read almost every word processing document format ever. It can even read ancient WordStar documents, the program that originated our common shortcuts of Ctrl-C to cut, Ctrl-P to print, etc.

Much of the software I use has no Linux version yet, so I must use Windows for now.