Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. Dear Attorney- I write today to express my gratitude for your help- thank you. An employee appreciation or thank you letter is a formal message from an employer that recognizes the former's contribution to the company they work for. Writing a letter is a simple and meaningful way for volunteers nationwide to say "Thank You" to all who serve. Write a standout thank you note to a host or giftgiver with our tips for a thoughtful, sincere message. Your contributions to the company have been invaluable, and we would like to express our sincere gratitude for your hard work and commitment. Mil website belongs to an official U.S. Department of Defense organization in the United States. Show your appreciation.