plot 3d data

hi
I have a text file like this:

x	y	z
0	2	1
1	3	0
2	0	3
3	1	2
4	6	5
5	7	4


I have read how to plot data in 2d (x y) but I haven't understood how to do plot data in 3d (x y z)

Which is the easiest way to plot them?

thanks