I will go over a step-by-step resignation template letter you can use, how to structure it and provide examples of resignation letters. Start with a two weeks notice letter.This will serve as a formal, written documentation of your intent to leave and your transition timeline. In this article, we discuss what a retail resignation letter is, the key parts you should include in the letter and the steps to writing one. This sample resignation letter is available for use on UpCounsel.