Office for Mac 2011 has "not been tested on macOS 10.13 High Sierra, and no formal support for this configuration will be provided" - unsurprising, as all Office for Mac 2011 support ends in October.
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A new report claims that Microsoft won't release a new stand alone version of Office for the Mac platform until the end of 2014, four years after the 2010 release of Office for Mac 2011.
Microsoft has released a small update for Office for Mac 2011 that, in addition to some bug fixes, allows the software to be activated as part of a user's Office 365 Home Premium installations.
Microsoft has announced that Office for Mac 2011 has received an update, which gives people who own the Retina display-based MacBooks full support for the higher resolution display.