Creating Surface Form Land XML in Civil3D

1 : Go to insert Menu Bar. select Import or LandXML from Import Tool Bar.
2 : Select (.XML) file from your Computer and Select ok.
3 : you can see imported landXML to Surface.
4: Click surface & right click surface property You can change the display style

To import LandXML drawing data
Click Insert tabImport panelLandXML

Find.
In the Import LandXML dialog box, click Browse and navigate to the LandXML (*.xml) file you want to import. Click Open.
In the Import LandXML dialog box, select sites for the alignments and parcels.
Click Edit LandXML Settings to display the Import tab of the LandXML Settings dialog box.
Specify the import settings and click OK to return to the Import LandXML dialog box.
The data tree displays each of the major data collections in the LandXML file. Use the data tree to:
Navigate a data collection and view its subcomponents.
Expand the collections. Select or clear the check boxes to filter the data types that you want to import into the drawing. By default, all data components are selected for import.
Note: The check boxes have a tri-state display. If only some objects are selected under a collection, the check box is shaded . If all the items are selected, the check box is selected . If all the items below the collection are cleared, the check box for the collection is cleared .
Click OK to import the LandXML file or click Browse to select another LandXML file.
After you click OK, the data is imported into the drawing. The data components are added to the drawing’s applicable data collections in the Prospector tree.

Note: Some information about the import operation may be reported in the Event Viewer Vista dialog box.