Enterprise Administration > Windchill Data Loading > Loading Legacy Data Using the LoadFromFile and LoadFileSet Utilities > Working with Containers > Containers in Your Windchill Solution > Hierarchy that Includes Products and Libraries
  
Hierarchy that Includes Products and Libraries
Site container
Organization container
Product containers
Library containers
Documents
In the hierarchy, there is a single site container and a single organization container when the solution is installed. You may create additional organization containers.
Within each organization container, there may be product and library containers. Business-level objects such as parts, documents, and CAD documents can be loaded into the product or library containers.
Multiple product containers can exist in one load file. Product containers belong to an organization, so when calling the load utility, you must specify the proper organization.