How To Write A Letter Online Format . Under share, click get a link. Only the first word of the closing should be capitalized. Free Relieving Letter Format, Samples How to write a Relieving Letter? from www.ncertbooks.guru Write some complimentary closing line at the end of the body. Write the body of your letter. First, as the sender, type your full name and address aligned to the left side, just as you would when addressing an envelope.