does anybody know how to open vcxproj in visual studio 2008. It seems this file was only opened by visual studio 2010 isn't it?
You don't. You'll need to create a Visual C++ 2008 project (.vcproj).
Visual C++ 2008 uses VCBuild; Visual C++ 2010 uses MSBuild.
来源：https://stackoverflow.com/questions/4621978/how-to-open-vcxproj-visual-c-project-with-visual-studio-2008