Open XML | How to get values from merged cells

Hi

I have spread sheet as below:

I need to get values from C3:D3, C3:D4...C6:D6

I wrote below code

using (SpreadsheetDocument spreadSheetDocument = SpreadsheetDocument.Open(fileName, false))
{

  WorkbookPart workbookPart = spreadSheetDocument.WorkbookPart;
  IEnumerable<Sheet> sheets = spreadSheetDocument.WorkbookPart.Workbook.GetFirstChild<Sheets>().Elements<Sheet>();
  string relationshipId = sheets.FirstOrDefault(s => string.Compare(s.Name, "Names", true) == 0).Id;

  WorksheetPart worksheetPart = (WorksheetPart)spreadSheetDocument.WorkbookPart.GetPartById(relationshipId);
  List<MergeCells> mergedCells;
  if (worksheetPart.Worksheet.Elements<MergeCells>().Count() > 0)
  {
       //How to access values from merged cells
  }
}

Can anybody please help me in understanding to get values from merged cells?

Regards,

RK

Radhakrishna