Kinect Studio displays stream data collected by the sensor array, and can record and play Xbox Event File (XEF) files for local analysis.
To open Kinect Studio, in the Windows 8 main screen, type kstudio or Kinect Studio, or click the Kinect Studio tile in Windows 8.

By default, Kinect Studio is installed at the following path:
C:\Program Files (x86)\Microsoft Durango XDK\bin\KStudio.exe