Returns or sets the inside border for the specified object. Returns wdUndefined if more than one kind of border is applied to the specified object; otherwise, returns False or a WdLineStyle constant. Can be set to True, False, or a WdLineStyle constant. Read/write Long.
Remarks
True sets the line style to the default line style and sets the line width to the default line width. The default line style and line width can be set using the DefaultBorderLineWidth and DefaultBorderLineStyle properties.
Use either of the following instructions to remove the inside border from the first table in the active document.
ActiveDocument.Tables(1).Borders.InsideLineStyle = wdLineStyleNone
ActiveDocument.Tables(1).Borders.InsideLineStyle = False