Product functionality and feature availability may vary on older systems. As new major versions of macOS are made generally available, Microsoft will drop support for the oldest version and support the newest and previous two versions of macOS. Office for Mac is supported on the three most recent versions of macOS.

1280 x 768 screen resolution (32-bit requires hardware acceleration for 4K and higher).

Professional Plus: Skype for Business requires DirectX 9 or later, 128 MB graphics memory, and 32-bits-per-pixel-capable format.

Graphics hardware acceleration requires DirectX 9 or later, with WDDM 2.0 or higher for Windows 10 (or WDDM 1.3 or higher for Windows 10 Fall Creators Update).

Windows 10, Windows Server 2019, or later.

What's the difference between Microsoft 365 and Office 2019? System Requirements for Windows

Office 2019 is sold as a one-time purchase, which means you pay a single, up-front cost to get Office apps for one computer. Microsoft Office helps you complete common business tasks, including word processing, email, presentations, data management and analysis, and more.

Outlook office home and student 2019