Withdrawing Applications

I was accepted to my ED school and need to send emails withdrawing my applications from my other schools. What should the email say?

An example that my counselor gave me:

To Whom It May Concern:

I am writing to request that my application for admission to College X be withdrawn, as I have received an acceptance from my early decision school. Thank you for your time and consideration.

Usually your counselor would help you with the emails, but the above example is fine.