To Open and Edit a Traverse File in the COGO Editor

1. In the Toolspace, on the Toolbox tab, expand Civil 3D 2016 Productivity Pack 1 Coordinate Geometry. Double-click Launch Coordinate Geometry Editor to display the COGO Editor.
2. Ensure that the Entry tab is active.
3. In the COGO Editor dialog box, click .
4. Select the file and click Open.
   Note: You can open a TRV2 file (the current file format) or a TRVX file (an earlier file format created in the previous coordinate geometry editor tool).

   The COGO Editor dialog box is populated with the traverse data, and a preview of the traverse is displayed in the drawing.

5. In the COGO Editor dialog box, adjust the parameters as necessary.
6. Create additional sides as needed, and then specify the requisite parameters.
7. On the main toolbar, click .