I try to do something simple, use official data of Belgium zones that I found here: https://eservices.minfin.fgov.be/myminfin-web/pages/cadastral-plans.
So I downloaded the files of one city and opened it in QGIS. That works but the coordinate system seems to be totally wrong. I would like to switch to an international standard.
In fact, I need to use the Googlemap API to get coordinates from full addresses and use that to get the position. Is there a way to correct that?