The File menu contains commands for opening and saving files, and printing.

Span can measure a Maxsurf design to determine the hull parameters necessary for the VPP calculations. Select Open Design to open an existing Maxsurf design.

Select Close Design when you wish to finish with the current Maxsurf design.

Selecting New Measurement Data will delete the existing hull and rig data from memory. New data may then be entered manually, loaded from a file or measured from a Maxsurf design file.

Span has the ability to save measurement data to disk and recall them at a later date. By selecting Open Measurement Data, a dialog box appears with a list of available Span data files. Select the data file you wish to recall, click the Open button, and the requested data file will be opened. In Windows, the Span data files are given the extension ‘.spd’.

Selecting Save Measurement Data will save the current set of Span measurements to disk.

Selecting Save Measurement Data As enables you to save the current set of Span measurement under a new name. This is useful if you modify the data, but wish to keep a copy of the old version as well as the new.

The Page Setup dialog allows you to change page size and orientation for printing.

Choosing the Print function prints out the contents of the uppermost Span window.

Opens the last file open in Span.

Exit will close down Span and return you to the Desktop.  If Span has a set of markers or a surface open that has not been saved to disk, you will be asked whether you wish them to be saved.