Explain why you're leaving. Briefly explain the reasons you've decided to leave, both related to your current job and to your new position.Ensure the most current form has been submitted. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Dear Mr. Lee: I am writing to formally notify you of my resignation from my position at PQR. Below you'll find a sample resignation letter informing the employer that the employee is resigning due to a new job opportunity. An employee wishing to leave in good standing shall file a written resignation with the appointing authority in the form of a Resignation Notice or a letter. Here's a step-by-step guide on how to write a resignation letter, with examples and a template to make it as easy as possible for you.