well, i have fixed this problem by following the instructions:
1) Using the calculator, select the desired output signals
2) Click on printvs in the calculator window
3) A Printvs Range window will appear. You can define the range of values desired for your output signal, i.e. a frequency range if you are printing an AC signal or a time range if you are printing a transient signal
4) A Results Display window will appear. Your data will be displayed in column format. Click Window -> Print … and then select Print To -> File. Enter a filename.txt.
5) You can then import the column data from the .txt file into Matlab.