Hi Ian, yes if you're using v4 the bar in the top right is the loading bar. It will only move when an object is done being processed though.

If you have a 92 MB file that has just one single object in it, that's a very complex object and it can take a while for it to load. The multi-core processing won't help for that kind of file since a individual object will be processed on just one core.

If the loading bar is showing and it is using CPU then it's crunching away on it so just let it keep going. With just one object in the file the progress will jump from 0 to 100% in one step instead of having any incremental movement.

- Michael