Microsoft Office is the essential office package and office programs for Windows, and since Office is developed by Microsoft, it is perfect for Microsoft Windows. Several versions of Microsoft Office have been released, both for Windows and Macintosh, such as Office 2019 and Office 365. All versions of Microsoft Office have as a base the modules Microsoft Word, Microsoft Excel, Microsoft PowerPoint and Microsoft OneNote. For additional modules, choose the more advanced versions where, for example, Microsoft Outlook is only available in the Business and Professional editions.