This guide covers all the essentials, from how to format your letter to what kind of content it might include. Sample 1: Dear Donor(s), I am writing to express my sincere gratitude to you for choosing me as a recipient of the Ogontz Campus General Scholarship.Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). Thankyou letters should begin with a statement thanking the vendor for their service.