Huge STL form revit?

[manncm]

I want to repair an STL I made in Revit so that I can 3d print it but it seems too large for fusion 360 to take/do a worthwhile job on anyways any thoughts. Roughly 4 GB with around 14.5 million triangles? is there a better way to do this starting in Revit perhaps?

[ToanDN]

If the roughly 20 cm dimension is the size you want to 3d print then your model has way too much details.

[manncm]

its not I will scale it up to about 200 cm but I am not sure how to get the windows to be solid or the base to not have a hole in the bottom.