Microsoft Office Professional Plus 2019 is a software program that is part of the Microsoft Office series. Microsoft Office Home & Business 2019 is a one-time purchase productivity suite designed for individuals and small businesses. It includes Word, Excel, PowerPoint, Outlook, and OneNote, offering essential tools for document creation, data analysis, presentations, and email management. The Retail Key allows flexible activation on a Mac, making it a great choice for users who may need to reinstall or transfer their license. This version provides improved security, enhanced cloud integration, and a refined user experience optimized for macOS.