To Import a 3D IGES File
1. Click File > Open. The File Open dialog box opens.
2. Select IGES (.igs, .iges) in the Type box. A list of IGES files in the current working directory appear.
3. Click the name of the 3D IGES file that you want to import or browse to find and then click the file.
4. Click Import. The Import New Model dialog box opens.
5. Continue with the import profile in use for the import or select a profile from the Profile list. Click Details to customize the import profile settings in the import profile editor, IGES — Import Profile, that opens..
6. Click OK. The IGES part or assembly is imported. The import log file is automatically generated in the Working directory. If there are layers associated with the IGES part or assembly and if you clicked Customize layers in the Import New Model dialog box, the Layer Import Options dialog box opens.
7. Select layers for import and set their import status in the Layer Import Options dialog box.
8. Click OK.