@mostapha the Topologic project is more software agnostic and works on IFC files in a few platforms. Talk on Topologic? — OSArch Community
As I understand it the tricky part is that different programs store geometry in different way so working out the space/room boundaries inside/outside is tricky. That’s part of what Topologic is working on.
I’m sure if you start a chat with Cyril & topologic on the forum they’d be happy to talk about the progress they’ve made. I know Cyril has specifically looked at how to take a BIM and ‘convert’ it to a BEM.