Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward.In the opening paragraph, clearly state that you are resigning from your position. I regretfully have to inform you that, after much thought, I have decided to resign and please accept this letter as a formal notice of my resignation. Open your letter with an introductory paragraph that explains your intention. For more tips on a smooth resignation process, including how to format your letter and write a two weeks notice letter, check out this article. If I can be of any help during this transition, please let me know. Sincerely,. Follow proper business letter format in writing your resignation letter — just as if you were writing a cover letter seeking a new job. You will need to state your resignation, indicate your expected final date of employment as well as offer support in the transition process. Notice of resignation: State in plain language that the letter's purpose is to inform the employer of your resignation.