#---
# Excerpted from "Programming Ruby 3.2",
# published by The Pragmatic Bookshelf.
# Copyrights apply to this code. It may not be used to create training material,
# courses, books, articles, and the like. Contact us if you are in doubt.
# We make no guarantees that this code is fit for any purpose.
# Visit https://pragprog.com/titles/ruby6 for more book information.
#---
require "win32ole"

excel = WIN32OLE.new("excel.application")

excel.Workbooks.Add
excel.Range("a1").Value = 10
excel.Range("a2").Value = 20
excel.Range("a3").Value = "=a1+a2"

excel.Range("a1:a3").each do |cell|
  p cell.Value
end
