Command entry: 
 
 Application menu 
 Import 

 Select File To Import dialog 

 Files Of Type drop-down list 

 Choose AutoCAD Drawing (*.DWG, *.DXF). 

 Choose a DWG or DXF file. 

 Click Open. 

 AutoCAD DWG/DXF Import Options dialog 

 Layers panel
            
 
 The Layers panel of the Import Options dialog lets you choose specific layers for importing from the DWG or DXF file. 
         
            
            Interface
            
            
            
               
               Layers panel
               
               
               This panel is similar to the Manage Layers dialog. Layer names remain the same as specified in the drawing file. 
               
               
               - Skip all Frozen Layers
 
                  - 
                     
                        
                        Excludes the import of objects on frozen layers. 
                        
                        
                      
                   - Select from List
 
                  - 
                     
                        
                        Allows you to choose specific layers to import. A check mark beside the layer name indicates the layer will be imported. Click
                           the layer to toggle the check mark. 
                        
                        
                      
                   - All
 
                  - 
                     
                        
                        The All button is only active when Select From List is turned on. It quickly lets you select all the layers in the list. 
                        
                        
                      
                   - None
 
                  - 
                     
                        
                        The None button is only active when Select From List is turned on. It deselects any layers you've selected. 
                        
                        
                      
                   - Invert
 
                  - 
                     
                        
                        The Invert button is only active when Select From List is turned on. Clicking this button reverses the selection set: currently
                           selected layers are unselected and unselected layers are selected. 
                        
                        
                      
                   - [layer list]
 
                  - 
                     
                        
                        This field displays all the layers that make up the drawing and shows their status such as hidden/displayed or frozen/unfrozen.