Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).On behalf of our family we wish to thank you for your professional services during our difficult time. We appreciate your kind and thoughtful service. Your hard work, expertise, and ability to overcome challenges were instrumental in its success. Thank you for your dedication to excellence. This is one of the most important memos or letters you will write because it builds good will, respect, and cooperation. I am really glad I entrusted you to carry out this challenging work. I feel proud and fortunate to avail your services. A formal appreciation letter or an email to your employees expresses your gratitude for their contribution to your business.