Enterprise Administration > Windchill Data Loading > Loading Legacy Data Using the LoadFromFile and LoadFileSet Utilities > Working with Containers
  
Working with Containers
Your installed Windchill environment consists of a set of containers that hold all of the administrative areas (known as domains), rules, and data that make up the context from which Windchill users work. Throughout the user interface, Context is used to identify where specific rules, domains, and data reside in the framework. However, to create this environment, you load containers. Because container is the label you see in the code, this topic collection uses the term container (rather than context).
There are three levels of containers: site, organization, and application contexts. After installing Windchill, it is recommended that you load demo data to ensure that the system is working. The Windchill Loader is used to load this data.
For more information about the Windchill Loader, see the Windchill Installation and Configuration Guide.
By default, the Windchill Loader creates the following containers:
site container
organization container
These containers are nested and create a hierarchy (that is, the organization container exists within the site container). The Windchill Loader only creates one of each container.