I could NOT figure out from the icon what function was connected to the filename. After thirty minutes, I was able to identify it as "Open Config Data.vi" not "Open Configuration File.vi" as described in this post. Otherwise, this was an EXTREMELY helpful description of how to use Read Panel from INI__ogtk.vi.
Please, Please take a moment to turn on the labels before posting. There are over 10,000 different icons. No one can recognize them all.
My image is a snippet. You can drag and drop it directly onto the block diagram of LabVIEW. If the VI doesn't exist on your machine, you will get the name of it when LabVIEW looks for it. Please review the LabVIEW Help on snippets.