The current Apache OpenOffice supports Apple OS X version10.7 (Lion), 10.8 (Mountain Lion), 10.9 (Mavericks), 10.10 (Yosemite),10.11 (El Capitan) and macOS 10.12 (Sierra), 10.13 (High Sierra),10.14 (Mojave), 10.15 (Catalina). If you’ve been updating Mac Office 2016 regularly, you’ll be OK. After v15.35, Office 2016 for Mac is 64-bit only. The latest or recent versions of Office for Mac are ready for Catalina (ie 64-bit): Office 365 for Mac (fully updated) Office 2019 for Mac Office 2016 for Mac after v15.35 is also OK for Catalina. Microsoft Office 2019 For Mac Os Catalina Free Download.