SortHeader
type SortHeader = xlNo | xlYes
Description
Specifies whether the first row of the sort range contains the header information.
Try It
oWorksheet.GetRange("A1:C5").SetSort("A1:A5", "xlAscending", "B1:B5", "xlDescending", "C1:C5", "xlAscending", "xlYes", "xlSortColumns");