Knowing the 5 Cs of business writing can help you write effective letters. I How to End a Business Letter. Business Letter Format How To Write A Business Letter Format Download This Business L Business Letter Format Business Letter Template Business Letter Layout Use this guidance as an adjunct to the Federal Plain Language Guidelines. How can business letter be made effective . There are several steps you can take to make a business letter professional and appropriate for the audience of your letter. The majority of business letters you write will be worded professionally. The reason for. First making reference to earlier contact. Realize that your recipient reads a significant amount of correspondence on a regular basis and will favor well-executed letters that are free of typos and grammatical errors. Include all of the facts required by the audience. Skip one line between your address the date and your recipients information. Good writing skills often lead to ...