Application For Address Proof On Company Letterhead – Letterhead templates might be difficult to utilize, but there are some suggestions to make your job simpler. Let’s first look at the various letterhead formats. There are two primary types of formats for letterheads, the single-line type, as well as the double line version. Let’s look at the differences between the two types before proceeding to the primary idea behind templates for letterheads. The letterheads for your business will likely have your company’s name, logo as well as a description of your company’s name, and your contact details.