Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).In this article, we offer some tips and examples to help you write a great thankyou letter to your manager. On behalf of the entire team at < company name >, I would like to acknowledge your invaluable contributions to the workplace. Here's information on when and how to say thank you to your manager, with examples of the best way to relay your appreciation to your boss. In the first sentence, say you're grateful for the employee's amazing work. Specify what they've done recently to impress you. I sincerely appreciate your kind words. Your letter made my day! Thank you for your wholehearted support.