Creating Envelopes _ Your letter will not be complete unless you have an envelope also formatted appropriately. What's good about this function is that you can either customize your own envelope or allow Word to come up with a matching envelope to the letter you have written using the application. What it does is it automatically copies the address and uses it to create the envelope. That helps you do away with manual typing.
What's format? _ This is the layout of your document, where you decide the key order of the components (or chapters) of your standard. So for a user guide this might be; Contents Page, Product Introduction, Product Photo, Full User Guide, Quick Reference Guide, Copyright Statement, and Disclaimer. You can add as much or as little detail to each section as you feel necessary.