You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: biff8.rb
    path of file: ./repos/spreadsheet/lib/spreadsheet/excel/reader
    
    the code of the file until where you have to start completion: module Spreadsheet
  module Excel
    class Reader
##
# This Module collects reader methods such as read_string that are specific to
# Biff8.  This Module is likely to be expanded as Support for older Versions
# of Excel grows and methods get moved here for disambiguation.
module Biff8
  include Spreadsheet::Excel::Internals
  ##
  # When a String is too long for one Opcode, it is continued in a Continue
  # Opcode. Excel may reconsider compressing the remainder of the string.
  # Th
    
  def read_range_address_list work, len
    # Cell range address, BIFF8:
    # Offset  Size  Contents
    # 0       2     Index to first row
    # 2       2     Index to last row
    # 4       2     Index to first column
    # 6       2     Index to last column
    # ! In several cases, BIFF8 still writes the BIFF2-BIFF5 format of a cell range address
    # (using 8-bit values for the column indexes). This will be mentioned at the respective place.
    #
    offset = 0, results = []
    return results if len < 2
    count = work[0..1].unpack('v').first
    offset = 2
    count.times do |i|
      results << work[offset...offset+8].unpack('v4')
      offset += 8
    end
    results
  end