If your purpose is to simply restore a previous set of values from one session to another, or to provide a choice of different data sets, your easiest method is a flattened string file.
Just wire your cluster array into the Flatten To String function and into Write Characters To File VI.
To read the file, just wire Read Characters From File into Unflatten From String. Use the empty cluster array indicator as the data type.
Another option is to write an XML file, but that requires LV61 or the
OpenG toolset.