Civil.htm - Displaying of this file indicates your file was created with Imagineer Technical 2.0 or Imagination Engineer 2.0.

Civil (Imperial).igr Template

<application.path>\..\symbols\AEC\Site (Imperial)

Civil (Metric).igr Template

<application.path>\..\symbols\AEC\Site (Metric)

Copy and paste one of the above locations into the browser address path under File>Properties Browser tab and this will point you to the latest symbol content for SmartSketch Version 3.0.