No put into sketchup so i can edit it. I know how to edit the romfs file part. I just cant figure out how to put it into sketchup
Right, open up the szs file and open the model (The .bcmdl file) You should see the model. Click the green leaf (Top right.) and save it. (If you have a obj importer, you can use OBJ. If not, use .dae.) and go to sketchup.
If you have a OBJ importer:
Go to your OBJ importer's menu, and click import. Choose your model.
If you do not have an OBJ importer:
Go to File>import. Select your .dae model. (This also applies if you have sketchup pro, which you can use an OBJ instead.)
Hope this helped!