Importing cell notes
The 
    OnlyNotesColumn attribute is used to
      import cell notes. It does not import cell values. The allowed values for the OnlyNotesColumn attribute are true or false. The
      default value is false, which has no effect. When setting the OnlyNotesColumn attribute to true, OLAP expects the Note column in a line to be imported but no Value
      column.Example
<Alea:Document xmlns:Alea="http://www.misag.com">
  <Alea:Request RequestID="4.180.5" Class="Cube" Method="ImportCells">
    <Alea:CellBatch Cube="DCS_Planning" Delimiter=";" OnlyNotesColumn="true">
AS600/175;01_2017;Units;Cell note 1
AS600/175;02_2017;Units;Cell note 2</Alea:CellBatch>
  </Alea:Request>
</Alea:Document>