Or just go for the basics: double-spaced, Courier 12-point font, 1 inch margins, paragraphs indented 1/2 inch (one tab space), header every page with "Last Name / Title / p. #", hyphenation turned off, widow/orphan turned off, "--" instead of em-dash. For the first page only: Name, address, contact info in upper left (single spaced), approximate word count in upper right,
Title centered and maybe a third of the way down the page, with "by Your Name" centered on the next line. If it's a novel, the text begins on the following page; if a short story, it begins on the same page about halfway down. For novel chapters, start each chapter on a new page, put the chapter name about 1/3 of the way down the page, and start the text about halfway down.

And, above all, look online for the formatting requirements of the particular market. For that market only, ignore anything I say above in favor of what they say they want.