How do I take out the audio file (only) after i edit it with window movie maker?

Sorry in your question I hear 2 questions 1) How to get an audio file from a video file 2) How to save an audio file to your pc? Ill answer both for you. 1) How to get an audio file from a video. First I take it you already have the movie maker open an the video you want to use. Now at the bottom make sure you are in time line view... **** easier... Instead of placing the video in the "video" place it in the "audio/music" line...... (Click and drag to there.) To save refer to question 2. 2) How to save audio file.. Make sure audio file is finish and ready just the way you want it. Then click on "file" Then on "save movie file". <---( also for audio file) Then select "my computer" and click next. Then name the file and select a saving folder then click on next Then you can change the size. If you don't want to just leave it. Then final step click on next. Then finish. PS!!! If it gives error then it does not suport the type of file you are trying to save nothing you can do then accept find a converter on google and download it. Then convert the video/audio file to a suported type. Some converters can extract audio from a video file. Sory if I got your question wrong but this is what I understood.