2.1 File Structure Overview

A file of the type specified by this specification MUST be a compound file.

A compound file contains storages and streams. A stream that contains a ZIP package is used to persist the information necessary to represent fully a Web drawing. This package contains a collection of parts that are used to persist data in XML or standard binary formats and specify various aspects of the Web drawing as well as the structure of the package.

The following figure shows a possible implementation of a file specified by this specification.

Figure 1: Possible Implementation of a File