Exporting to DXF creates unwanted axis lines

I am using DraftSight version V1R2.1 and when exporting files to DXF format and then importing into other applicaitons (SheetCam) I get unwanted axis lines.  These lines are not visible in either of the DWG or DXF files.  Do someone know what is causing these or how to get rid of them.

 

Thanks

 

Jay