Thanks to Rolf Osterthun response. I Can use XML Notepad and Parts Tracker at http://www.ldraw.org/library/tracker to remove non-existed part in the LDraw universe and all XXXXX.dat entries.
Good knowlege base is located on http://brickset.com/ too.
Good knowlege base is located on http://brickset.com/ too.
Lego isn't just a brand of plastic bricks. It's a lifestyle; and artistic medium.