You may choose to write your manuscript using LaTeX if you are writing on topics in mathematics or the sciences.
LaTeX is a typesetting program for manuscripts with complex equations, text, tables, figures, and other materials. It is free to download at https://www.latex-project.org/.
Dr. Carl Mummert, Assistant Provost for Graduate & Interdisciplinary Studies, created a LaTeX-styled template that integrates Marshall's ETD guidelines, and you can download it at the link below.