Premiere Elements 11 on what computer operating system? Assuming Windows 7, 8, or 8.1 64 bit for now.
This is a 2 part must do
1. Edit Area
In the Expert workspace, set the gray tabs of the Work Area Bar to span just the segment for export to file saved to the computer hard drive.
The above is a screenshot from version 13/13.1. It is offered to point out what I mean by gray tabs of Work Area Bar...applies to version 11 also.
You can use the mouse cursor to set these tabs or use the following shortcuts.
Move the Timeline Indicator to the start of the segment...as you hold down the Alt key, press the left bracket key [
Move the Timeline Indicator to the end of the segment...as you hold down the Alt key, press the right bracket key ]
In your export settings, there needs to be an option for Share Work Area Bar Only, and it must have a check mark next to it to select it.
If you need comments on the choice of export settings, then please post details of the project settings and properties of Timeline content, and I will customize a reply.