In this article, we explain what an official letter is and how to write one, plus we provide a template and example of an official letter for you to reference. When size, weight, or other factors prevent sending an enclosure with a letter, send it separately and type "(sep cover)" after the enclosure's description.Send the letter directly to the office, department or individuals involved in the situation. Simply sending the letter to the ombudsman is not appropriate. In this article, we explain what an enclosure is and how to cite one, and we provide an example of an enclosure in a business letter. This article will discuss some common sample letters that you can use when communicating with your tenants. We'll also provide templates for each letter. (INSERT YOUR NAME). Enclosures. Updated Scoring Guide. Be sure to download and save the form to your computer before completing it.