Important Sense of Microsoft Office Apps on MacOS and iOS Devices
31 August 2026
As of July 13, 2026, Microsoft Office applications on older and unsupported systems may enter “Reduced Functionality Mode,” resulting in the loss of editing, saving, and new file creation capabilities.
To resolve this issue, Microsoft recommends first updating the operating system and then updating the Office applications. For more detailed information and device-specific solutions, please visit Microsoft's official support page: