If I wanted to ask you for help on a Matlab program of 200 lines, you wouldn't like me to send you a screen shot of the program in the Matlab editor, would you? You'd want the code.
Attach your code, please, namely the file(s) with extension .vi. Attaching an example of the data file(s), as well as a better description of what you are trying to do (don't worry about how to do it, we'll make suggestions) would be helpful (some might say "necessary").
I presume you know that LabVIEW 8.6 is over a decade old, "almost" obsolete ...
Bob Schor