Why is the block letter format commonly used for business letters?

Block letter format commonly used for business letter to reach towards key information quickly by scanning it easily. This technique is used in important documents to highlight the key information so that no important information left behind while reading the document. Business letter are the common letter regarding business from one company to another. The most common types of business letters are, request letters, inquiry letters, sales letter, customer relation letters, termination letter and application letter. The font style of the particular business letter depends upon the situation involved. Oracle application express also known as Oracle APEX is one of the important example for this particular case.