DisplayColumnHeadings Property
From Microsoft Office Web Components Object Model
DisplayColumnHeadings Property
Returns or sets whether column headings are displayed in the specified window. Set this property to False to hide the columns headings. The default value is True. Read/write Boolean.
expression.DisplayColumnHeadings
expression Required. An expression that returns a Window object.
Example
This example hides the row and column headings in the active window of Spreadsheet1.
Sub HideHeadings()
Spreadsheet1.ActiveWindow.DisplayColumnHeadings = False
Spreadsheet1.ActiveWindow.DisplayRowHeadings = False
End Sub