The Export to DXF option in the Profile window pop-up menu allows you to export the profile lines as 3D lines in a DXF file.
To export to DXF:
Right-click the Profile graph in the Profile window.
Select the DXF Export command.
The Export to DXF dialog box is displayed.
In this dialog box you can define the output file location and coordinate reference system that will be used for the export.
In the Output file field, click Browse (...) and enter a name and location for the exported file.
In the Coordinate reference system field, click Browse (...) to select the output coordinate system.
Click OK to perform the export.
The DXF file is saved to the specified location.