I'm trying to open an Inventor Assembly (.iam) file which I thought I was able to open with SolidWorks but it
keeps giving me an error message, "The file you are opening is an Assembly file. Please install Inventor 11 
to open such files."  I'm not sure why it won't let me open it.  Does anybody have any suggestions or ideas
why it is not working?  Please help!  Thank you!