The Open (Ctrl+O) command allows you to open an existing SPS or PXF file. The familiar Open dialog of Windows systems is opened and allows you to select a file with an extension of .sps.
The Reload command reloads the SPS file from the file saved to disk. Any changes made since the file was last saved will be lost. The Working XML file will also be reloaded, enabling you to update the Working XML File it it has been changed externally.
The Close command closes the currently active SPS document. Note that while several files can be open, only one is active. The active document can also be closed by clicking the Close button at the top right of the Main Window. If you have unsaved changes in the document, you will be prompted to save these changes.
The Close All command closes all the open SPS documents. If you have unsaved changes in an open document, you will be prompted to save these changes.