The ENC datasets that are part of the exchange set. ENC exchange sets consist of one or more datasets and a catalog. The exchange set's datasets can be used to create EncCell objects, which can be used to create EncLayer objects for display in a map.
A ListImpl of the paths of the ENC exchange set. An ENC exchange set can be loaded with the path to a single exchange set and zero or more update exchange sets. If an exchange set which only contains updates is loaded, the corresponding exchange set with the base cells must be loaded simultaneously.