The only styles that are shown in a new blank document are the ones set in the blank file template. You can open a new document, which means that a new file with no text or styles is opened. When you open Word for the first time, the first window shown asks you what file that you want to open. In addition to using templates pre-designed by Microsoft, you can also customize your own. These files save you time and effort when you need to design a professional looking file that will be shown to a third party.
For instance, if you need an invoice created, Microsoft Word has attractive, professional looking templates that you can use. All Microsoft Office applications have templates available for use, and some of them are beneficial for busy people.