Have a customer that was provided design files including a .dc file. According to the customer the calibration is a published coordinate system that has been adjusted with a site cal.The file works in SCS and GCS but we can't get it to load in Earthworks v1.61. Keep getting an "coordinate system failed to load" error. We've tried creating the Earthworks file in BC-HCE, exporting it from SCS and using file flipper with no luck. Any suggestions? Files are attached..