The entire state of a session can be stored into a single (.oes) file. A state file contains all of the molecules, grids, and surfaces that were loaded at the time the original save occured. In addition, the state file contains the actual view, layout, and properties of that session. State files provide an extremely convenient way to save sessions for later work or to send to a collaborator. Furthermore, state files are the fastest method of reading and writing large data sets.
To load a state file, select the ``Open State" option in the File menu and select the desired state file. State files can also be loaded from the commandline. It is important to note that loading a state file during a run will clear the current state before loading the new on. Therefore, be sure to save the current state before loading a new state if keeping the current state is desired. Furthermore, since state files contain the entire state of the application that generated them, loading a state file will overwrite local preferences. As a result, the application will prompt on exit whether or not to keep the new preferences or to revert to the original ones that existed before loading the state file.