I want to convey my heartfelt gratitude to all the members of the foundation who work tirelessly to make the world a better place for individuals like me. I am writing to express my deepest gratitude for your generous financial support.Your financial aid has relieved a significant burden off my shoulders. Learn how to write an employee appreciation letter with these templates and examples. Download the template for free (PDF or Word). Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. I am writing this letter to personally thank you for the donation you recently made to the United Efforts organization. Greet the Donor Write to the donor or organization, not the selection committee. Write an excellent thank you letter for donations. Get tips and best practices, plus three inspiring samples and ready to use templates!