There is a product which Mincom call "Mincom-Connector" which exposes various properties, methods and events of Ellipse objects.
So, yes, using Mincom-Connector and some programming tools you could load up all the components which comprise a Chart of Accounts.
Typically, I've used it to load data from an Excel spreadsheet into Ellipse. Set a reference to the Mincom-Connector dll, write a bit of VBA code sitting behind Excel and away it goes.