Complex sentence: The user need not always select an incorrect word for it to appear in the document; in WordPerfect 9 with factory default settings, any unrecognized word that was close enough to exactly one known word was automatically replaced with that word.
Split into simpler sentences: The user need not always select an incorrect word for it to appear in the document. In WordPerfect 9 with factory default settings, any unrecognized word that was close enough to exactly one known word was automatically replaced with that word.