Learn how to write a resignation letter (and what not to include) and then use our example letters as a guide. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips.Learn when to use a formal letter of resignation, how to write one and what not to include, with a template and example. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. A simple resignation letter template should include your name, position, company name, date, and a brief statement of your intention to resign. Dear (HR Manager's Name),.