New to labview, need some suggestions

[Chai-Yo]

I am new to Labview.
I 'd like to plot my data on each group as you can see in the text file (e.g. LC1DS0->SA,LC1DS1->SA,...,LC1DS4->SA as a row headers and the frequencies as column headers). This way I can analyze the data easily by plotting the graph.
I have tried to use open config--> get key names --> read keys and I can get one dimension of array. I know I need to do another For loop to make Loop for Section after it completed Loop for each keys. But I have a hard time wiring the VI. Please help suggestions. I also attached text file and a sample of my VI.

[tst]

I hope I understood you correctly. You're right about needing another for loop - that's the one that gets the input from the Get Section Names VI and inside it runs your loop.
By the way, when using auto-indexing in a for loop, there's no need to wire the array size into the N terminal. The loop will run according to the size of the smallest array wired into it.