Question:

How can I open an ALG in a previous version of InRoads?

Answer:

The following workflow will allow ALG files to be saved down to a previous version of InRoads:

1. Open the ALG in the current InRoads version.
2. Select File > Save As. 
3. Change the Save as type to "Geometry Projects (*.alg)".  Click the Options button.
   
   
   
   
4. The Geometry Options dialog lists the formats that are available when saving a geometry project.  Select the version that you would like to save down to and select OK.