RefWorks offers two tools that coordinate with Microsoft Word: RefWorks Citation Manager and Write-N-Cite. Both tools allow you to access your saved references in RefWorks from within Microsoft Word after installing the plug-in or add-on. The tools are similar in function but Refworks Citation Manager only runs on Office 2016 and later versions.
On Windows you have the option of running either Write-N-Cite or RefWorks Citation Manager on Office 2016.
For MacOS you must use RefWorks Citation Manager.