Learn how to write a resignation letter with a notice period. Use one of our resignation letter templates.Writing a Resignation Letter. A resignation letter provides notice that you will leave a company. Fill Online, Printable, Fillable, Blank RESIGNATION LETTER Form. Use Fill to complete blank online OTHERS pdf forms for free. In this article, we discuss what to include in a professional resignation letter and we share examples of resignation letters you can use for reference. I regret to inform you that, after much thought, I have decided to resign. Please accept this letter as a formal notice of my resignation. In this article, we discuss how to create a 30day resignation letter, why it's important and provide a template and examples to help you write your own.