As a normal thumb rule, a two weeks notice letter is used for giving a resignation letter to a company. Two weeks is the most acceptable time frame that can be given to a company. Most corporate houses demand a two weeks’ notice period from their employees when they resign from their job. You can choose from a variety of notice period templates that includes the name of the employee, date of leaving the job, reason for leaving the job, and a thank you note. You can download a two weeks’ notice letter template from online as well if you do not know the right format.