```ruby
module MemberAddressChangers
  class Csv 
    def initialize(req, out_csv)
      @request = req
      @errors = []
      @csv = out_csv
    end

    def invalid_address(details = {})
      details.each_pair do |k, v|
        property_errors = Array(v)
        property_errors.each do |err|
          @errors << "- Address invalid: #{k} #{err}\n"
        end
      end
    end

    def no_such_member(details = {})
      @errors << "- Member #{details[:member_id]} does not exist\n"
    end

    def too_many_health_policies(details = {})
      @errors << "- has too many active health policies\n"
    end

    def too_many_dental_policies(details = {})
      @errors << "- has too many active dental policies\n"
    end

    def no_active_policies(details = {})
      @errors << "- no active policies\n"
    end

    def responsible_party_on_policy(details = {})
      @errors << "- Policy #{details[:policy_id]} has a responsible party\n"
    end

    def fail(details = {})
      @csv << (@request.to_a + ["error", @errors.join])
    end

    def success
      @csv << (@request.to_a + ["success"])
    end
  end
end
```

Fix Excel display nonsense in error messages from address change bulk upload
user
```ruby
module MemberAddressChangers
  class Csv
    def initialize(req, out_csv)
      @request = req
      @errors = []
      @csv = out_csv
    end

    def invalid_address(details = {})
      details.each_pair do |k, v|
        property_errors = Array(v)
        property_errors.each do |err|
          @errors << " - Address invalid: #{k} #{err}\n"
        end
      end
    end

    def no_such_member(details = {})
      @errors << " - Member #{details[:member_id]} does not exist\n"
    end

    def too_many_health_policies(details = {})
      @errors << " - has too many active health policies\n"
    end

    def too_many_dental_policies(details = {})
      @errors << " - has too many active dental policies\n"
    end

    def no_active_policies(details = {})
      @errors << " - no active policies\n"
    end

    def responsible_party_on_policy(details = {})
      @errors << " - Policy #{details[:policy_id]} has a responsible party\n"
    end

    def fail(details = {})
      @csv << (@request.to_a + ["error", @errors.join])
    end

    def success
      @csv << (@request.to_a + ["success"])
    end
  end
end
```
assistant