In this article, we share the steps for writing an application letter along with a template and an example for you to use when writing your own. FORMAT. Cover letters should be written in a business format.Parts of a cover letter include job seeker's email address and phone number, date, employer's. Mention the job position you are applying for and where you found the information about the job opening. Choose a few phrases in the opening paragraph that let your reader know what to expect in the body of the letter.