title: Axlsx-Rails gem not working properly, show missing template
body: <p>I have a link like this </p>
  
  <pre><code>&lt;%= link_to "download file", import_horse_report_horses_path(format: 'xlsx') %&gt;
  </code></pre>
  
  <p>Then in the controller action I have following code</p>
  
  <pre><code> def import_horse_report
      @horses = ImportHorse.all        
      respond_to do |format|
        format.xlsx{ }
      end
    end
  </code></pre>
  
  <p>For this action I have this template import_horse_report.xlsx.axlsx</p>
  
  <pre><code>wb = xlsx_package.workbook
  wb.add_worksheet(name: "Horses") do |sheet|
    @horses.each do |horse|
      sheet.add_row [horse.breed, horse.date_of_birth, horse.gender]
    end
  end
  </code></pre>
  
  <p>I am using axlsx_rails gem and following its documentation. But I get this error </p>
  
  <pre><code>Missing template horses/import_horse_report, application/import_horse_report with {:locale=&gt;[:en], :formats=&gt;[:xlsx], :handlers=&gt;[:erb, :builder, :coffee, :rabl]}
  </code></pre>
  
  <p>How can I solve this?</p>