## Workbook
A workbook is a spreadsheet document that contains one or more worksheets that are stored within the Worksheets collection.
// Save to an excel file
workbook.Save("FolderExample.xlsx");
' Create a new Workbook
Dim workbook As New Workbook
FIXME: This demo doesn't have VB code.
' save to an excel file
workbook.Save("FolderExample.xlsx")