Format includes such things as references in a document and time limits in a presentation. In engineering, there is no single ordained format. Whatever company you work for, whatever journal you submit to, you must arrange your document or presentation to meet that company's or journal's format. Tables are rows and columns arrangements of words and numbers.
Structure includes both the organization of details and the emphasis of details.
Style includes such things as the way you organize details, the words you choose, and the illustrations you choose. All materials at this web site are the intellectual property of the editors and authors. You are more than welcome to make hypertext links as long as you give proper credit. If you have comments, suggestions, or questions, please direct them to one of the editors.