How To Write A Block Style Business Letter . Down the middle of the page, align the return address, date, closing, signature, and typed name; In the modified block style the return address, date, complimentary closing and the signature line are slightly to the right of the center of the paper. Free 8+ Printable Business Letter Format Block Style PDF in 2021 from www.pinterest.ph In the modified block style the return address, date, complimentary closing and the signature line are slightly to the right of the center of the paper. You will need to write your address (unless you have a professional letterhead which already covers this data), along with the address of the business or person you are writing to. Type the name and address of the person and/or company to whom you’re.