I have resigned on _____ date because ______(reasons). Can anybody give me format of Resignation letter and Experince certificate?Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Learn how to write a resignation letter (and what not to include) and then use our example letters as a guide. I will be joining the new company on June 16, 2022, so I kindly request that you please issue me an experience certificate before the date mentioned. Most large companies have an HR Shared Services team that issues the letter based on an email request from you. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips.