Populate the attribute table of 3D points with the z-values of each point

Summary

Instructions provided describe how to populate the attribute table of a 3D point feature class using the z-values of each point.

Procedure

1. In ArcToolbox click Data Management tools > Features > Add XY Coordinates.
   
   

   Note:
   This tool refers only to x and y coordinates. It populates x- and y-values but also populates z-values, if they are present in the geometry of the point file.

   
   
2. Add the point file as the 'Input Dataset' and click OK.
3. Now that the attribute table has fields for x, y, and z; the attribute values from the geometry of the points populate these fields.