The Goldmine Plus add-in is an option on the Windows client-side install. There are options for linking to Word, Excel & Outlook. I've used the Word link extensively for many years. I would review the Compatibility Matrix supplied by Goldmine to make sure that the version of MS Office is compatible with your release of Goldmine. After the add-in is installed you will see additional options in the Word/Excel main menus that allow you to select Goldmine fields from Contact1 & Contact2 tables. After your word template is built you can use the Document Templates area of Goldmine to perform a mail merge on one or more records.
I added a bit more to my reply see above.