Why does clicking on a project in the Xcode navigator show a raw pbxproj file
xcode
Solution
Sometimes this happens because you are in version-control view. There are three buttons: normal view, assistant view, and version-control view. Make sure you're in one of the first two.
EDIT: Also, I had another thought. "pbxproj"??? The current suffix is "xcodeproj", and has been for a really long time. You might be just trying to open a file that's too old for your version of Xcode.
Problem
... rather than a gui for build phases, targets, etc? I usually see the gui.