Resignation Letter: When an employee is quitting his/her job, it's proper protocol to provide his/her employer with a formal resignation letter for the employee's file. A letter is a way to formally announce an employee's resignation, even if an employee has already discussed his/her resignation with an employee's boss or Human Resources.Writing a letter is also a behavior … [Read more...] about Resignation Letter | How To Write a Letter Resignation To Company, Format & Samples