Required Tools:
- Ekszbox
- Widows Sound Recorder (Start -> All Programs -> Accessories -> Entertainment -> Sound Recorder)
- Audacity/Any Sound Editor you got

Reccomended Items:
- An XBox Game Image
- or A Xbox Game CD

Steps:
1. Open EkszBox
2. Open a .XWB file using EkszBox
3. After the .XWB loaded, Click the Blue Disk Button to Extract sounds
The output file is in the directory where the .XWB is located
4. Open the Sound Recorder
5. Open the .wav file in the Output Directory
6. Then Choose File -> Save As
7. Look at the Format, Click "Change"
8. Change the Format into PCM
9. Change the Attributes into 187 kb/sec, Click Ok.
10. Set the File Name then .wav and then Save.

This way, you'll get the Sounds from XBox.