Formal Letter Block Format. It is much like the modified block style except that each paragraph is. Business l etter i s below, but the bu siness l etter you may download i ncludes th e. Mention relevant details about the area of inquiry; Use times new roman 12 font. How do you write a formal letter in mla format? 12+ Example Of Semi Block Style Business Letter Type the recipient’s name and address. What is block format when writing a paper or letter? The manager xyz agency 35 patel street delhi − 18. Followed by their full name.