I cannot see separate tracks in Audio Mixdown when Ex

I got 6 tracks recorded in Cubase LE 6 as shown below

And when I try to Export Audio Mixdown, I cannot see all the tracks separately as Audio Channels. I only see Output Channel and Stereo Out as shown below.

Can someone please help.

Help yourself and start reading the manual: You only get the output channels to show in Cubase LE 6.