title: Rails gem axlsx gem multiple sheet
body: <p>Is it possible to export in xlsx with multiple sheet using gem axlsx. If not please suggest me the other ways.</p>
  
  <p>I want to export the values of @search, @searchg, @clients, @overtimes in different sheets. </p>
  
  <pre><code>@search = Operation.where(:date =&gt; params[:from_date].to_datetime..(params[:to_date].to_datetime + 1.day))
  @searchg = Guard.where(:status =&gt; true).where(:induction_date =&gt; params[:from_date].to_datetime..(params[:to_date].to_datetime + 1.day))
  @searcht = Guard.where(:status =&gt; false).where(:terminate_date =&gt; params[:from_date].to_datetime..(params[:to_date].to_datetime + 1.day))
  @clients = Client.where(:status =&gt; false).where(:terminate_date =&gt; params[:from_date].to_datetime..(params[:to_date].to_datetime + 1.day))
  @overtimes = Overtime.where(:date =&gt; params[:from_date].to_datetime..(params[:to_date].to_datetime + 1.day))
     respond_to do |format|
          format.js
          format.xlsx {render xlsx: 'report', filename: "Operation_reports_#{params[:from_date]}_#{params[:to_date]}.xlsx"}
     end
  </code></pre>