Created 6 arrays (probably an array of arrays
For each line in text file:
Read 6 elements in each line
Append (add) each element to its appropriate array
Or to do what your example shows (simply adjust the output)
1 2 3 4
Write out headers
For each line in text file:
Read 6 elements in each line
Write out elements with adjusted spacing
This second option does not actually create any arrays, just adjusts the display
If you want both (create arrays and display them in columns, combine both of the above.