Optimize and Format Large Microsoft Word Document

I have a 600-page Microsoft Word document that requires professional attention to optimize its formatting and navigation. The document needs to be streamlined for better usability, with improvements such as an enhanced Table of Contents, bookmarks, and overall navigation structure. Additionally, I would like the file size to be optimized without compromising content integrity. This is an urgent task, and I am looking for an expert who can deliver high-quality results promptly.