.png's aren't VI's. They are pictures.
Your workTargetSelect.vi is a VI. But it is only 1 VI. It doesn't have any subVI's in it.
In that VI, use block diagram cleanup. It is hard to tell which way wires are runnign.
Also, Index Array is resizable. You can stretch the bottom border downwards to get multiple inputs. Instead of dozens of Index Arrays, you might be able to use just one or two.
Also, Those Concatenate strings are rather complicated. If you used Format Into String, you could put all those string constants into the Format String and only need the dozen wires or so for the data. You won't have to wire up all those quotes and labels like ""Tag No. ="
So if the VI you attached is actually the subVI, since you have 2 infinite while loops in there, how will that subVI ever end so that it allows execution to go back to the main VI?
I would recommend looking at the online LabVIEW tutorials
LabVIEW Introduction Course - Three Hours
Learn LabVIEW
Why does the upper while loop run infinitely fast waiting for the search button to be pressed? Why is it in a loop? None of the inputs ever change. Shouldn't it just run once when the subVI starts?
What do you do with the outputs of this VI besides writing them to a text file?
It seems this VI should be just 1 or even no while loops. And it if is a while loop, you should have a "Close" button on it so that it will end the loop and return control back to the main VI.
