Microsoft Office 2019 Professional Plus Retail (Version 1808 Build 10730.20102) represents a stable, comprehensive release of Microsoft’s classic productivity suite. As a "perpetual" license version, it was designed for users and businesses that prefer a one-time purchase over the recurring subscription model of Microsoft 365.
The Professional Plus edition is the most feature-complete retail tier, offering: Overview of Office 2019 (for IT Pros) - Microsoft Learn Microsoft Office 2019 Professional Plus Retail (Version 1808
This specific build is often sought after for its inclusion of the full suite of Office applications compatible with both and 64-bit (x64) architectures. Core Applications Included Microsoft Office 2019 Professional Plus Retail (Version 1808