Saving results in graph form

[xposer]

I am writing a VI that controls the optical attenuator and bert. As the Attenuator increases, the BER will increase too. The result is in a graph form and I dunno how to save the information in graph so that i can further view the result and print the results later. This is my first VI that i wrote, can you give any comments?
please advice..attached is the VI that i wrote

[Dr._Imad]

currently you are saving the data to a file using Write LabView measurement File express vi and plotting it using the build XY graph express vi

To read the saved data, use Read LabView Measurement file express vi. Make sure the same file name is given for both vi's. You will have to use "split dynamic data" and then pass the arrays to the build XY graph express vi