Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).On behalf of the entire team at < company name >, I would like to acknowledge your invaluable contributions to the workplace. This guide covers all the essentials, from how to format your letter to what kind of content it might include. Casual appreciation letter template. You can find 13 samples of employee appreciation letters below. Additionally, you can use our editable templates for employee appreciation cards. You will find three sample letters below, created for various purposes. We encourage you to personalize them with issues that are important to you. Send the letter within a week after the interview.