Bug 210720 [Automation][Acceptance]Date is displayed as datetime when export report to XLS
Description: Date is displayed as datetime when export report to XLS. Test Date: 20071123 Test Build: BIRT2.3.0 Daily Build: v20071123-0800 Step to reproduce: 1. Use the report attached 2. Export the report to XLS Expect Result: Date should be displayed as date type Actual Result: Date is displayed as datetime.
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/ExcelUtil.java
if(data instanceof com.ibm.icu.util.Calendar) {
			date = ((com.ibm.icu.util.Calendar) data).getTime( );
		}
		else if(data instanceof Date) {
			date = (Date) data;
		}
		else {
			return null;
		}
		
		return  dateFormat.format( date );        
	}
    
    public static String formatNumber( Object data)
    {
       DecimalFormat numberFormat = new DecimalFormat("0.00E00");
       return numberFormat.format( (Number)data);
    }
      public static String getType(Object val)
    {
    	if ( val instanceof Number )
    	{
    	   return Data.NUMBER;	
    	}
    	else if(val instanceof Date)
    	{
    	   return Data.DATE;	
    	}
    	else if (val instanceof Calendar)