I have a drawing that has a broken file reference and is no longer working. It should be referencing part Example.SLDPRT but somehow it is now referencing file ExampleSLDPRT with no extension on the end. When I open it up it just shows the boxes with an x in it. If I try a replace model on the part it gives an error saying wrong file type or something like that. If I try to go to file open references and change it there it shows it as ExampleSLDPRT. and when I go to change it it says I can't change it from one file type to another there. Is there some way I can get this file back to recognizing the correct part?