how to load files saved as following formats into openGL application--need help!

how to import(load) “objects” into an OpenGL application that are saved in the following file format:
.obj),Render(.slp),VRML(.wrl),ACIS File(.sat),
Could you give me some examples or source codes ,or give me some clue about that?I need them in a hurry.Thank you very much! Please help me!

Hi !

find a library that can do it for you or write the code yourself.

You can use google to find lots of libraries for different formats, you could also have a peek att and has information about many different file formats.