In this article, we share tips for writing a short, simple resignation letter and offer examples for you to reference when creating your own. A one (1) week notice letter is written notification provided to an employer that an employee will no longer be working with the company within seven (7) days.I will go over a step-by-step resignation template letter you can use, how to structure it and provide examples of resignation letters. Dear (supervisor's name),. I am writing to announce my resignation from (your position) at (company name). Explicit information about the reasons for your resignation. I have accepted a new opportunity that aligns with my career goals.