The document discusses ETAP data exchange and GIS integration capabilities. It describes features like import/export of data, synchronization, error checking and mapping between ETAP elements and external data. The interface involves importing elements and connections from external projects into ETAP using XML. It allows one-way then two-way synchronization of data. GIS integration allows mapping of GIS equipment to ETAP, displaying analysis results on maps, and exchanging data between ETAP and GIS formats for reduced data entry and system studies.