If you need the specific build 16.54 for compatibility reasons (e.g., an internal corporate tool that breaks with 16.55+), follow these legal channels:
: Open any app (like Word or Excel) and click Skip Sign In if prompted. Check the "About" section to confirm it is licensed as "Office LTSC Standard for Mac 2021". Overview of Office LTSC 2021 - Microsoft Learn microsoft office ltsc for mac 2021 v1654zip
Microsoft Office LTSC Standard For Mac 2021 Educational Commercial - Perpetual License If you need the specific build 16
Microsoft Office LTSC for Mac 2021 v16.54 is a specific release of Microsoft's "Long-Term Servicing Channel" (LTSC) productivity suite. This version was released on October 13, 2021 Core Product Overview This version was released on October 13, 2021
If you need a (real version), let me know — I’m happy to write a detailed, helpful one.