10 GB of available space, formatted as HFS+ (Mac OS Extended) or APFS. Display: 1280 x 800 screen resolution. Installation Steps
If you have the installation package (typically a .pkg file), follow these steps: Update history for Office for Mac - Office release notes Microsoft Office 2019 16.23 DC 27.03.2019
Intel processor (Apple Silicon was not yet released in 2019). Memory (RAM): 4 GB minimum. 10 GB of available space, formatted as HFS+
macOS 10.12 (Sierra) or later. Note that Office 2019 typically supports the three most recent versions of macOS. 10 GB of available space