Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word).You can find 13 samples of employee appreciation letters below. Additionally, you can use our editable templates for employee appreciation cards. Casual appreciation letter template. The message of appreciation should stand alone. Be brief, warm, and sincere. Thankyou letters should begin with a statement thanking the vendor for their service. Re: Scholarship Name (fill in this part.) Dear Benefactor: 1. First paragraph – Provide an opening expression of gratitude for this award.