public ColHandle[] getColumns()
	{
		List<ColHandle> columns = new CompatibleVector();

		for( Colinfo c : mysheet.getColinfos() )
		{
			try
			{
				int start = c.getColFirst();
				int end = c.getColLast();
				for( int i = start; i <= end; i++ )
				{
					try
					{
						columns.add( getCol( i ) );
					}
					catch( ColumnNotFoundException e )
					{
					}
					;
				}
			}
			catch( Exception ex )
			{
				;
			}
		}

		return columns.toArray( new ColHandle[columns.size()] );
	}