You can do the 'import' yourself by attaching the template to your document.

First, save the template to your Word User Templates folder. By default, this should be in the folder
%appdata%/Microsoft/Templates
You find that folder by pasting the above path into your Windows File Explorer folder path.

Then open the document in Word, show your Developer Tab and click on the Document Template button to attach the template.

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Andrew Lockton
Chrysalis Design, Melbourne Australia