Thanks for your answer. I do not know if the file I uploaded is saved in Labview 2011 or 2009. I only know my Labview is 2009 and when I tried to open it, it showed an error :VI version(11.0) is newer than Labview version (9.0).
I would upload the file to that forum,again. Thanks.
That is a LabVIEW 2011 file. You need a downconvert to version 9.0. (I was not sure if you had LabVIEW 2011 or not)