To Load a Diagram
1. Click or File > Open. The Open dialog box opens.
2. Select Diagram (*.dge) from the Type list.
3. Browse to the required DGE file.
4. Select the file and click Open. After the diagram data loads, the Design Explorer dialog box opens.
* 
When the loading fails, a message appears and previously loaded data is discarded.
5. Double-click the sheet to open it.