Importing from Wordpress, what creates navigation?

I’m trying to import an existing Wordpress site to Hugo to get a website I do not need to maintain continuously. I tried exitwp-for-hugo, it seems to do what it promises but the resulting website after running hugo has no navigation between pages. What is it that creates navigation in a hugo website? I found that doing touch _index.md makes the index page show the files in that directory in a way blog would show them, but the Wordpress site is not a blog.

Navigation is created either via menus in your templates, or using sections and pages: