Table data is not displayed in Column Format.

Hi,
I have a Sample data which consist only 6 rows. Whenever i want to display it in columnar format, it display in text format. I already follow this steps.
1)CREATE FLEX TABLE Sample_Data_1 ();
2)COPY Sample_Data_1 FROM '/tmp/RF_Data_1.csv' PARSER fcsvparser();
3)SELECT maptostring(raw) FROM Sample_Data_1;
4)SELECT compute_flextable_keys_and_build_view('Sample_Data_1');

Both screenshot (Sample Data & Its Result) are attached below.
Bhargav,
Regards