Is There Any Function to Merge Excel Rows in NAV 2013 r2 Reports

Hi

When i Write Code For Export To Excel, I want To print my Report Name in Excel First

For This one i want to merge Rows

This is code…

IF ExportToExcel THEN BEGIN

ExcelBuffer.CreateBookAndOpenExcel(‘Item Vendor’,’’,’ ',USERID);

ExcelBuffer.Merge(1,1,1,1);

ExcelBuffer.AutoFit(‘A:F’);

ExcelBuffer.GiveUserControl;

END;

but i doesn’t merge any Suggestions please…

Thanks In Advance,

Akil