* A Mac computer that has an Intel processor. * Mac OS X version 10.5.8 (or a later version) * 1 gigabyte (GB) or more of memory ( Apple Support Community Microsoft Office 2011 Mac 64 bit upgrade
LibreOffice is the industry-leading free alternative. It is regularly updated and still supports macOS Sierra (check the system requirements for older versions). Microsoft Office 2010 Free Download For Mac Os Sierra
If you're looking for a more stable and supported solution, consider purchasing a newer version of Microsoft Office, such as Office 2019 or Office 365. These versions are optimized for Mac OS Sierra and provide the latest features, security updates, and technical support. * A Mac computer that has an Intel processor