You could try bounceing it to a clip or consolidate track and then just pull it out of the projects audio folder?

Using Sonar 8.5, I would regularly transfer projects back and forth between PTLE.  What I learned was that any time I dragged a mono file into Sonar, the channel strip would default to stereo-interleave.  Looking at the files names in your audio folder it's obvious to me that those files were not created in Sonar, so I'm guessing that is how your track became set to stereo-interleave. 

I just experienced this when exporting a simple 2 track song to mp3.  Way too hot. I had the master bus fader down to almost nothing. When I exported to wave it sounds ok.  I'm at a loss here.

I know his is an old thread. I had the same problem. Thanks to the post here I checked my panning laws preferences. I'd reinstalled Sonar and forgot the setting I had previously. I set the law to -3db sin cos constant taper, and now my exported files (to other projects in this instance) aren't clipping.
 
Cheers!