Technically, Cite-O-Matic is not a standalone download. It is a feature within the software. To get it:
Open Microsoft Word. You will find the Cite-O-Matic tools under the References tab. The Shift to Mendeley Cite mendeley cite-o-matic download
if you use Microsoft 365, collaborate on the cloud, or want the most up-to-date features and security. Technically, Cite-O-Matic is not a standalone download
Cite-O-Matic only works with Mendeley Desktop. If you are using Mendeley Reference Manager, you must download Mendeley Cite. Which one should you use? collaborate on the cloud
is a dedicated add-in available through the Microsoft AppSource store.