There is a possibility this refers to .
As this is a modified binary patch from unofficial sources, it may contain security risks or malware. No Longer Supported: Mso15.11.2patch
Unofficial patches frequently cause software to crash or fail after macOS system updates. There is a possibility this refers to
What are you trying to deploy this on?
Because Office 2013 is now end-of-life (as of April 2023), Microsoft no longer issues security updates for it. If you are searching for Mso15.11.2patch because of a recent security advisory, be aware that: What are you trying to deploy this on
However, the long-term strategic takeaway is clear: migrate off manual MSI patching. Modern Office products offer seamless, silent, delta updates without the version-specific pitfalls exemplified by filenames like Mso15.11.2patch. Until then, treat this patch with the respect it deserves—a critical security and stability component for the aging but resilient Office 2013 suite.