To Export a Model Tree to a Text File
1. In an open assembly, select a component, and perform one of the following operations:
Right-click and select Information > Reference Viewer
Click Model > Reference Viewer
Click Tools > Reference Viewer
The Reference Viewer dialog box opens.
2. Expand the Model Tree items intended for export.
* 
Collapsed Model Tree items are not exported.
3. Click File > Export > Export Model Tree as Text. The Get Name dialog box opens.
4. Type a name in the Enter file name box and click OK. The Model Tree is exported to a text file and saved in the working directory.