There is good news for RefWorks users who have the latest Word versions on Mac or Windows!
RefWorks has engineered a new version of Write-n-Cite, the tool used to insert citations in Word documents. The new version called RefWorks Citation Manager (RCM) is installed through the Windows Store and is compatible with the latest version of Office. This is available on both Mac and Windows and will eventually be available on iOS, Android and Office 365. Please see these instructions for adding RCM to Word.