Hi, I found this post very interesting, i reblog it for knowledge.
Data Upgrade from NAV 2013 to NAV 2018 Step by Step – by Suraj Patel
Source https://suraj-nav.blogspot.com/2018/07/data-upgrade-from-nav-2013-to-nav-2018.html
Microsoft Links for Upgrade and Data Upgrade to NAV 2018:
https://docs.microsoft.com/en-us/dynamics-nav/upgrading-to-microsoft-dynamics-nav
https://docs.microsoft.com/en-us/dynamics-nav/upgrading-the-data