SortOrientation

type SortOrientation = xlSortColumns | xlSortRows

Description

Specifies if the sort should be by row or column.

Try It

oWorksheet.GetRange("A1:C5").SetSort("A1:A5", "xlAscending", "B1:B5", "xlDescending", "C1:C5", "xlAscending", "xlYes", "xlSortColumns");

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