A support document published by Microsoft shows that although the most recent versions of the Windows office suite do not work in High Sierra, versions older or more recent than the current one, including Microsoft Office 2011, will be left without official support.
Microsoft Office 2016 should not work in High Sierra
In the support document, published shortly after High Sierra’s disclosure, Microsoft states that Office 2016 applications do not currently work , so users will have to wait for a future update. According to Microsoft, “not all Office functionality may be available” with High Sierra and stability problems are manifested when “applications are closed unexpectedly”. Without going into specific reasons, Microsoft strongly recommends that users take into account this existing data before testing the software.
The company requests that users send their comments if they decide to try Apple products with High Sierra and use Microsoft Office automation. Version 15.34 – the current version – and earlier are not compatible with High Sierra . It should be remembered that this 15.3 update was released on May 16th. Microsoft states in the same memo that Office for Mac 2011 “has not been tested” and “no formal support will be provided for this configuration”.
Office 2011 will no longer have official support in High Sierra
Office for Mac 2011 will also cease to be supported by Microsoft on October 10, 2017, and no further updates of any kind will be provided after that date.
We examined the latest April release of Office for Mac 2011, version 14.7.3, and found that the final result was worse after the upgrade of High Sierra. Service crashes were even more frequent than in Office 2016 for Mac. An attempt was made to test a typical standard solution to solve this type of problem: uninstall and reinstall the suite. And not at all, neither 2011 nor 2016 were better after a complete removal and reinstallation.
Office Suite 2011 for Mac
In short: the 2016 version is barely working in High Sierra in update 15.34 after several tests . The 2011 version does not work in any update, being also out of support in 2018.
That’s why we don’t recommend yet to test the High Sierra MacOS Beta if you normally work with office packages like this one. High Sierra is still a somewhat unstable beta at the moment, which is only found for developers.