You could have saved yourself a lot of trouble and just used the Read From Spreadsheet File like smercurio suggested. You tried to copy the other example but besides not wiring the file reference to open file, you also miswired the close file. The reference has to come from the read file to the close file. Otherwise, you might actually close the file before reading it. That's basic dataflow. You also have the wrong delimiter for the Spreadsheet String to Array. You have to right click on the string constant with the '\n' and select '\' Code Display to correctly use the Line Feed constant. Here's the VI you posted in a working form. I made the changes I mentioned and cleaned up your wiring a bit too. It's never to early to learn how to have a clean diagram with wires going where they are supposed to and routed in a logical manner. You also need to make sure that all of the error inputs/outputs are wired up.
I also included the Read From Spreadsheet function. The picture posted will work but I don't see the need for re-inventing the wheel in this case.
