A ZipSection can be interpreted as a collection of data sections. When stored, the ZipSection uses the PKZIP file format (via the ZipFileSystem class) to group and compress multiple data sections, maintaining hierarchical structure. A ZipSection file can be opened with any standard .zip file viewer.

A ZipSection is designed for use as a developer friendly format for easy access to it's held data. Whereas a BinSection cannot be accessed outside the BigWorld framework, a ZipSection can be viewed, debugged and edited externally. A ZipSection can also be used to only load specific portions of larger files. Unlike the BinSection which is forced to load the entire data structure before decoding.

Note that data added to a ZipSection will automatically compressed when saved to disk.

Currently, the binary files .cdata, and .fxo use this format.