Your letter should formally acknowledge the employee's resignation, confirm their last day of employment and wish them the best. Documents, Forms, Policies and Resources.RTF Recruiting and Hiring. The resignation is basically a "Request to be excused from duty" and like any other request, is not effective until granted. This sample resignation letter is available for use on UpCounsel. How to write a Resignation Confirmation Acknowledgement Letter? Download this Resignation Confirmation Acknowledgement Letter template now! How to write a Resignation Confirmation Acknowledgement Letter? Download this Resignation Confirmation Acknowledgement Letter template now! Miscellenous Petitions (to relocate, terminate, resign, etc.) Miscellaneous Forms.