Letterhead Template Html – Letterhead templates may be difficult to utilize, but there are a few tips that can make the process simpler. Before we begin, let’s take a look at the different letterhead formats. There are two types of letterhead format, the single-line format, and the double-line form. Let’s examine the differences between these two formats before going to the basic concept of templates for letterheads. Your corporate letterhead templates will likely include your company’s name, your logo as well as a description of your company’s services, and contact information.