In the "Wheel Designer"...
>> To save the design that you have entered or edited
•Select the Save or Save As option from the File menu.
The Save option will save any changes that you have made using the existing file name. If there is no file name (i.e. if it is a new file), then this option will prompt you to enter a name before it is saved. This option will automatically provide the appropriate file extension for your design e.g. if you are saving a biwheel design, then it will be given the extension .wh2. The Save As option prompts you for a name to save the file as.