Writing a donation letter for school can be daunting, but with these free templates, you can send the right message in no time. 1. Enter your school's letterhead and the current date.We'll cover everything you need to know about crafting letters for donations, including five steps for writing successful appeals and three free templates. In this post, I'm breaking down how to write a donation letter. CocoDoc collected lots of free sample letter asking for donations for school for our users. Let's walk through common examples of donation letters, starting with a template of the basic format to follow.