I've written this script which converts any format like .obj, .fbx, .ma and so on to alembic.
Its pretty simple to use at the moment, just renames and smooths the angle of the normals.(I plan on making a UI for it too so the terminal wouldn't have to be used to input the info)

This was mainly as Zbrush doesn't have an Alembic exporter and so to get geo from there and into clarisse we'd have to run it through either maya or houdini.
This could take awhile loading the shelfs and so on and loading the heavy geo could put a strain on the GPU to visualize it in the viewport.