Notes Sheet
A Notes Sheet is simply a worksheet on which you can put any notes or documentation. It has no special format. It is often useful to have one or more notes sheets towards the beginning of a workbook, containing information that is useful both to users who are new to the workbook, and to those who are maintaining it.
You can add a Notes Sheet to the active workbook by using the XLSior > Document > Add Notes Sheet command. The sheet will be added before the currently active sheet, and will be given a name starting with Notes. You can add as many Notes Sheets as you like to a workbook. They will be given unique names. The list of sheets on sheet X~Sheets will be updated each time you add a Notes Sheet.
You cannot add a Notes sheet to a shared workbook or one whose structure is protected.
Notes sheets are not treated in any special way by XLSior.
You can use user preferences to add Notes Sheets automatically to new or existing workbooks.