def column_count(index = Celerity.index_offset)
      assert_exists
      @object.getRow(index - Celerity.index_offset).getCells.length
    end
def column_count(index = Celerity.index_offset)
      assert_exists
      @object.getRow(index - Celerity.index_offset).getCells.length
    end
Returns the number of columns on the row at the given index. (1-indexed)
 Default is the number of columns on the first row
 @param [Fixnum] index An index, 1-indexed (optional).
 @return [Fixnum]