Change it to 1 or 2, if you want a much shorter TOC.
Change the heading levels reported in the TOC
It’s easy enough to change the TOC levels, but there’s a good chance they won’t indent correctly below the other TOC levels if you’ve set up TOC 1, TOC 2 and TOC 3 styles to indent differently than the default. Or perhaps three levels is too many, and you need to just show the Heading 1s. However, for very long complex reports, sometimes you need to report more levels - in the case of my client, the regulatory body they were reporting to needed to see five TOC levels. For most people, that’s usually more than enough. By default, Word inserts a Table of Contents (TOC) with three levels of headings.
