How do I save a mutlitcolumn data to a text file?

[Act]

I am trying to save a multicolumn data to a text file without using
Report Generation VIs. Here is the detail scenario...

I have data in the following format.

Time Voltage
1      2
2      3
3      6 ...

and
Power
1

and
Peaks
         x-axis    y-axis
Peak1      1         4
Peak2      5         11

If I have such data, how would I put them in a columnar format with
their title and labels in a text file.
Any example VIs would be nice to see.

Thanks.