File Name property with Extension

In the sheet formats I've set up, I use a note to show thefilename of the model being used in the drawing. Currently I'musing \$PRPSHEET:{SW-File Name} to do this, with the extension(.SLDPRT) manually entered behind it. The problem is that when Imake a drawing of an assembly, I have to remember to change theextension on the drawing.

Is there a way to get the model's file name with the extensionincluded automatically?SolidworksDrawings And Detailing