Hi ytu,
there are many methods to reach your goal...
What do you want to achieve? Small files? Readable by humans? What kind of data do you have in your cluster?
So you can try to save as datalog files (provide a dataype to the write function).
Or convert your array of cluster of 2 elements to 2D-array of strings and save this as spreadsheet file (csv format).
Best regards,
GerdW
using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019