How to determine encoding in Ruby on Rails when generating xls file?

Question

Ruby on Rails

I link like this:

<%= link_to 'Скачать excel', exportsub_path(format: "xls") %>

I generate an excel file like this:

def export
 @subscribers = Subscriber.where(user_id: session[:user_id])
     respond_to do |format|
       format.html
       format.xls
  end
end

And in export.xls there is a regular table with a cycle.
So, the excel file loads (with Russian content), but there are kryakozabras. How to solve the problem or how to set the correct encoding?

Answer 1

В контроллере добавить

before_filter :set_charset

    def set_charset
        response.headers["Content-Type"] = "text/html; charset=utf-8"
    end