To revert an individual file property to the value set at project level: 
               	 
            
 
            	 
             
               		
               - In Solution Explorer, right-click the file whose properties you want to modify. 
                  		
               
- Click 
                  		  Properties and select one of the available tabbed property pages - for example, 
                  		  COBOL.
                  		
               
- Display the drop-down list for the setting that differs from the project properties, and click 
                  		  <inherit from parent or project defaults>. 
                  		
               
- Click 
                  		  Apply, and then click 
                  		  OK. 
                  		
               
To revert all file properties to the values set at project level: 
               	 
            
            	 
             
               		
               - In Solution Explorer, right-click the file whose properties you want to modify. 
                  		
               
- Click 
                  		  Properties and select one of the available tabbed property pages - for example, 
                  		  COBOL.
                  		
               
- Click 
                  		  Use Project Defaults to revert all properties to the values set at project level.
                  		
               
- Click 
                  		  Apply, and then click 
                  		  OK.