Select file open from the menu. Click on the "Files of Type" drop down menu. You will be given the option to change the file type extension to any on the list. Select "AutoCAD documents (*.dwg). This will allow you to see and open these ACAD files from this tool. You can set the options if you like in by selecting (single click on the file) the file you wish to open in Solid Edge and selecting the "options" button at the bottom of the menu (note: the options button will not activate until you have selected a file). This will allow you to control and change certain atributes from the Autocad file. Typically you can leave the default settings and just open the file. Layers, line styles etc. should stay intact through this process. This has been a very effective way to open and migrqate Autocad data since Version 1 of Solid Edge.