Here are the steps to create a letterhead:

1. Open a new Microsoft Word document.
2. Click on the "Insert" tab and select "Header".
3. Choose the type of letterhead you want to create.
4. Add your company name, address, phone number, email address, and website.
5. Add your logo and any other graphics you want to include.
6. Choose your font style and size.
7. Save your letterhead as a template.

Here is an example of what a letterhead should look like:

![Letterhead example](https://www.wikihow.com/images/thumb/5/5f/Head-a-Letter-Step-1-Version-2.jpg/aid139794-v4-728px-Head-a-Letter-Step-1-Version-2.jpg.webp)