When you select and open a data file, the appropriate application is started and the data of the opened file is displayed in the application's window. When you select and open an application or executable file, the application is started. Executable shell scripts display a Notice asking you if you want to start the script in a Shell Tool. You can change your properties to have your folders open into the same window or separate windows. For complete information on this refer to "General Defaults".
From the file pane, you can open folders, files, and applications in the following ways:
Dragging and dropping selected folders onto the workspace.
Dragging and dropping selected files or applications onto the workspace, then using the menu or double-clicking SELECT on the icon or open window.
Choose File->Open or double-click SELECT on a data file or application icon.
When you open a file or an application from File Manager, you cannot close or quit it by dragging it back onto File Manager. You quit any window or icon on the workspace by choosing Quit from the Window menu.