Importing and cleaning STL files

Peter

Hello Everybody !

Does anybody know how to clean-up STL files ? I have a task to investigate external aerodynamics of a car with new design and for my work I received as a start point a STL file which contain geometrical data of the car. That STL files was constructed via laser scanning and contains enormous amount of data - over 2 milions vertices and approximately 700 000 faces. So, I have to clean-up it. I've dealed before with IGES file and everybody was OK, I read also carefully GAMBIT tutorials concerning importing different file format but noting for STL was wrote . Have anybody experience with STL-files ? Please, help.