.obj file? What is the use?

I came across this .obj file. Can anybody tell me what exactly the use of this .obj
“.obj define the geometry and other properties for objects” this is the definition I could find. Please explain more to me and maybe with some examples? Or point me to useful ref on web?

Thanks.

try this http://www.royriggs.com/obj.html

google is your friend

hope that helps

try looking here

http://www.wotsit.org/search.asp?page=2&s=3d

Also you might want to try searching the forums and the Web, here is a good place to search and so is google

Your more likely to find an answer to a question quicker if your do some searches etc…