So you create in Word templates
- First, tap the template in a standard, blank Word document.
- When you save the document when finished, select "save file as..." and click on "trusted templates".
- Enter a file name such as "standard letter-form" and select as file type "Word template".
- When you open the template later, it will appear as a working copy and can be saved as a new document.

Word: document as a template
Special templates to envelopes to label, you can find here.