Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward.In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. This article explores the essentials of a simple resignation letter template, offering guidance on how to communicate effectively and professionally. Resignation Letter Format: The following resignation letter format will show you what to write in your letter of resignation. A simple resignation letter format includes a resignation statement, an appropriate notice period, and an expression of gratitude. It is important to know the correct reason for resignation or dismissal.