Quatro Pro<p><strong>Quattro Pro</strong> is a spreadsheet program developed by <a href="https://en.wikipedia.org/wiki/Borland" rel="noopener" target="_blank">Borland</a> and now sold by <a href="https://en.wikipedia.org/wiki/Corel" rel="noopener" target="_blank">Corel</a>, most often as part of Corel's <a href="https://en.wikipedia.org/wiki/WordPerfect_Office" rel="noopener" target="_blank">WordPerfect Office</a> suite.</p>