While this is actually painful, but considering the fact that this is a pre-release software, Microsoft will be adding support for 10.13 macOS in the coming months or so, for the rest assured.

Since, all applications in the Office for Mac 2011 suite are reaching end of support on October 10th, 2017, Microsoft will not be spending time to test Word, Excel or PowerPoint etc., on macOS 10.13 and no formal support will be provided. For example, users will see the following error message when attempting to launch Outlook 2016 ver. In some cases, you may not be able to launch the Office apps.

These versions are not supported on 10.13. For Outlook, choose Contact Support from the Help menu. In Word, Excel, PowerPoint and OneNote, you can click on the Send a Smile icon in the top-right of the app. The following information is primarily intended for IT professionals who are deploying Office for Mac to the users in their organizations. See Microsoft Microsoft Office support for macOS 10.13 High SierraOffice support for macOS 10.13 High Sierra If you are able to open any other Office application such as Word, Excel, PowerPoint, you can check for updates. If you encounter issues using Office 2016 for Mac on High Sierra, please send us feedback so we can address them. Office for Mac that comes with a Microsoft 365 subscription is updated on a regular basis to provide new features, security updates, and non-security updates. Word, Excel, PowerPoint, Outlook and Lync have not been tested on macOS 10.13 High. We strongly recommend that you back up your existing data before trying the software. Mac Os High Sierra Microsoft Outlook Settings Microsoft posted a support article noting the status of Office for Mac 2011 saying there is no formal High Sierra support, and that no compatibility testing has been done.

Microsoft outlook for macos high sierra