	Name	Description
	DefaultFontName	Returns the name of the default font.
	DefaultFontSizeInPoints	Returns the size of the default font in points.

	Name	Description
	FileFormat	Sets/gets the file format that the spreadsheet will be saved in.
	OpenXmlStandard	Gets or sets the level of Open XML document conformance on exporting with Xlsx file format.
	ProtectWorkbookPassword	Sets/gets the password for protecting the elements in workbook.
	ProtectWorkBookStructure	Sets/gets the protection state for a sheet or workbook.
	ProtectWorkbookWindows	Sets/gets an option from the Protect Workbook dialog box. If this property is set to true, Excel will not let the user add, delete, reorder, or rename sheets in the workbook.
	Security	Returns a DDSecurity object for initializing document security.
	SheetName	Sets or returns a value indicating the name of sheet. Sheet is default.
	Sheets	Returns the collection of shsets as a DDSheets collection object.
	UseCompression	Gets or sets the value indicating should compression be used on exporting with Xlsx file format.
	UseDefaultPalette	Sets or returns whether export document with Excel default palette.

	Name	Description
	Clear	Removes all sheets, creates a fresh instance of all member class variables and initializes all member data variables to their default value.
	Save	Overloaded. Saves the current spreadsheet workbook to the specified Stream.