August 21, 1973
Dear Mr. /Ms. Manager:
Please accept this letter as my formal notice that I am resigning from (name of the company) as a (title of your job or position). (Date) will be the last day of my employment.
I have enjoyed my employment here and appreciate all I have learned. Thank you for the wonderful time that I had with you.
I appreciate all the opportunities I have given here and I wish you much success in the future.
Cc (name of those being copied on the letter)