Contents The Programming Tab » About the ZOS-API » IOpticalSystem ThePrimarySystem » File OperationsPrint page File Operations Next: 'LoadFile': Loading a Lens File (.ZMX) 'New': Create a new (default) Lens Data File (Lens.ZMX) 'Save': Save the existing System 'SaveAs': Save the current System to a new file (.ZMX) 'Close': Close the currently open System « IOpticalSystem ThePrimarySystem'LoadFile': Loading a Lens File (.ZMX) »