Click the Enerplot tab in the ribbon control bar, hover the mouse pointer over Open and select Open Workspace.
The Open File dialog window will open with default file types as Workspaces (*.epwx). Navigate to the desired workspace file and select it so that its name appears in the File name field. Click the Open button to open the workspace. If the old workspace has been modified, you will be asked to save it. The old workspace is first unloaded, and then the requested workspace will appear in the workspace window.
Workspaces may also be loaded via drag and drop. See Loading Books and/or Workspaces for more details.