The Autodesk® Batch Save Utility provides the ability to open and save multiple drawing and template files at once to a specified version of Autodesk Civil 3D.
You can also use the Autodesk Batch Save Utility to run custom scripts as part of the batch operation. For example, you can run a script to perform a series of commands such as -PURGE and AUDIT on multiple drawings. Sample scripts are included with the utility which you can view and edit directly from the Autodesk Batch Save Utility dialog box.