10. Admit that the document attached as Exhibit B is a true copy of the handwritten note that you provided to the plaintiff on June 20, 2008. Learn how to format an email or hard copy letter with an attached document and review our examples to use as a guide.Use a PDF reader to fill them out on a computer. You can then print and file or e-file if your court allows. How do I reference attachments in a letter? Mention the attached file in the email body. Attach an appropriate file format. Sending documents is an essential skill in the professional word. This is a free cover letter template for submitting documents. Free Download and customize it according to the sample text below.