They likely just want something on file documenting your resignation. I have resigned on _____ date because ______(reasons)."Learn the essential steps and tips for writing a professional two weeks notice resignation letter. To resign as a registered agent in Michigan, submit a Resignation of Resident Agent form to the Michigan Department of Licensing and Regulatory Affairs (LARA). 1. Complete the Application: You have two options for filling out your application. Note: We encourage you to apply online. Can anybody give me format of Resignation letter and Experince certificate? I hope this letter finds you well. I would like to request that you please issue me an experience certificate so that I can begin the process of joining another company. However some universities might demand from you that you cover up your gap in education.