Oct 31, 2017 The macOS High Sierra 10.13.1 Update improves the security, stability, and compatibility of your Mac, and is recommended for all users. This update: Adds support for 70 new emoji, including food types, animals, mythical creatures, clothing options, more expressive smiley faces, gender-neutral characters and more.
By Mike Wuerthele
Tuesday, June 13, 2017, 09:21 am PT (12:21 pm ET)
In the support document, published shortly after the reveal of High Sierra, Microsoft declares that while the Office 2016 suite of applications from unreleased version 15.35 and later do work, users will still have to endure problems while waiting for a future update. According to Microsoft, 'not all Office functionality may be available' and stability problems may manifest where 'apps unexpectedly quit.'
Without delving into specific reasons why, Microsoft strongly recommends that users back up existing data before trying the software. The company is requesting that users send feedback if they choose to test High Sierra and Microsoft Office products.
Versions 15.34 —the current version —and earlier are not supported on High Sierra, and users may not be able to launch the apps at all, according to Microsoft. The 15.34 update was released on May 16
Microsoft notes in the same memorandum that Office for Mac 2011 'have not been tested' and 'no formal support for this configuration will be provided.' Office for Mac 2011 will also cease all support from Microsoft on October 10, 2017 and no further updates in any form will be provided after that date.
AppleInsider tested the 15.34 version and found that they appear to launch and run for a period of time, but with notably slower speeds across the board. Furthermore, the apps quit unexpectedly fairly often during use.
The same issues manifested in a Mac with High Sierra that was not migrated to APFS, eliminating that as a primary source of the errors and crashing.