Do you have any problem to view a very large product in Catia?
Try this option…
This option is to check for very large product without having to open it. It will load your assembly without loading the representations. Thus, you can eaasily browse your whole assembly.
Once you apply this option, only spec tree will appear when you load the CatProduct. There is “no parking” sign beside icon on the spec tree.
Have a try! ^_^