The first step in creating a Portal is creating a Portal file in the Portal Designer. The file, which represents a portal desktop, appears in the Portal Designer as a graphic representation of your desktop, letting you drag and drop books, pages, and portlets and set properties to construct your portal. The .portal file that is created, along with any .portlet files for corresponding portlets added to the portal, supply all the configuration information the portal framework needs to perform the rendering process.
The .portal files you create serve as templates that portal administrators use to create new desktops in the WebLogic Administration Portal.
See the Portal Samples for instructions on viewing a sample portal file.