File list (Check if you may need any files):
CalculatorDemo.xcodeproj
........................\project.pbxproj
__MACOSX
........\CalculatorDemo.xcodeproj
........\........................\._project.pbxproj
CalculatorDemo.xcodeproj\project.xcworkspace
........................\...................\contents.xcworkspacedata
__MACOSX\CalculatorDemo.xcodeproj\project.xcworkspace
........\........................\...................\._contents.xcworkspacedata
CalculatorDemo.xcodeproj\project.xcworkspace\xcuserdata
........................\...................\..........\backnoway1111.xcuserdatad
........................\...................\..........\.........................\UserInterfaceState.xcuserstate
__MACOSX\CalculatorDemo.xcodeproj\project.xcworkspace\xcuserdata
........\........................\...................\..........\backnoway1111.xcuserdatad
........\........................\...................\..........\.........................\._UserInterfaceState.xcuserstate
........\........................\...................\..........\._backnoway1111.xcuserdatad
........\........................\._project.xcworkspace
CalculatorDemo.xcodeproj\xcuserdata
........................\..........\backnoway1111.xcuserdatad
........................\..........\.........................\xcschemes
........................\..........\.........................\.........\CalculatorDemo.xcscheme
__MACOSX\CalculatorDemo.xcodeproj\xcuserdata
........\........................\..........\backnoway1111.xcuserdatad
........\........................\..........\.........................\xcschemes
........\........................\..........\.........................\.........\._CalculatorDemo.xcscheme
CalculatorDemo.xcodeproj\xcuserdata\backnoway1111.xcuserdatad\xcschemes\xcschememanagement.plist
__MACOSX\CalculatorDemo.xcodeproj\xcuserdata\backnoway1111.xcuserdatad\xcschemes\._xcschememanagement.plist
........\........................\..........\._backnoway1111.xcuserdatad