Business Letter Format: Review a formatted business letter with information on what to include in each section of your letter. When you are writing a business letter, it's important to include an appropriate salutation at the beginning. This is true whether you send your message via email or through the mail. Using an appropriate greeting sets the tone for your letter and shows the recipient that you understand basic rules of business etiquette.
Parts of a Business Letter. Business Letter is a letter which is used by organizations to communicate in a professional way with customers, other companies, clients, shareholders, investors, etc. Business letter uses formal language and a specific format.