Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).Learn how to write an employee appreciation letter for different circumstances, work relationships and company cultures using our templates and examples. Below is a comprehensive guide to help you transform a standard thankyou letter into a pivotal moment in creating strong relationships that last. To Whom It May Concern,. You can find 13 samples of employee appreciation letters below. Additionally, you can use our editable templates for employee appreciation cards.