Bug 204245 Blank column on visibility column in excel[0300]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/buffermgr/TableContentLayout.java
*            col index
	 * @param rowSize
	 *            fill area size
	 * @param colSize
	 *            fill area size
	 */
	protected void fillEmptyCells( int rowId, int colId, int rowSize,
			int colSize )
	{
		int lastRowId = rowId + rowSize;
		int lastColId = colId + colSize;
		if ( lastRowId > rowCount )
			lastRowId = rowCount;
		if ( lastColId > colCount )
			lastColId = colCount;
		
		if(lastRowId>0 && rows[lastRowId-1]!=null)
		{
			lastRow = new Row( rows[lastRowId-1].rowId);
			lastRow.content = rows[lastRowId-1].content;
			lastRow.cells = new Cell[lastColId - colId];
			for(int i=colId; i < lastColId; i++)
			{
				lastRow.cells[i] = rows[lastRowId-1].cells[i];
			}
		}
		
		for ( int i = rowId; i < lastRowId; i++ )
		{
			Cell[] cells = rows[i].cells;