Click on the the template. At the bottom right of the dialogue you'll see two options: 'Document' and 'Template'. If you want to use the letterhead to send as a document or letter, choose 'Document.' If you want to edit the template, choose 'Template.' When you choose 'Document,' it gets saved as an MS Word document.
What's Boilerplate? _ Boilerplate is standard text that you can use over and over again, example of this are copyright statements and disclaimers which are unlikely to change much between document iterations or releases. For those who work with multiple clients and routinely assign their copyright to those clients it's a good idea to have a unique template for each client reflecting their needs in these areas.