def write_formatted_blank_to_area(row_first, row_last, col_first, col_last, format)
      (row_first .. row_last).each do |row|
        (col_first .. col_last).each do |col|
          next if row == row_first && col == col_first
          write_blank(row, col, format)
        end
      end
    end
def write_formatted_blank_to_area(row_first, row_last, col_first, col_last, format)
      (row_first .. row_last).each do |row|
        (col_first .. col_last).each do |col|
          next if row == row_first && col == col_first
          write_blank(row, col, format)
        end
      end
    end
Pad out the rest of the area with formatted blank cells.