title: How to export report to .xls file from Microsoft.Reporting.WinForms.ReportViewer v11
body: <p>Tell me please, how can I export a report (rdlc) from ReportViewer (v.11) to .xls file?</p>
  
  <p>This version of viewer could export to .xlsx file by click on Export -> Excel button. In this case SaveFileDialog would be open, and I can choose only xlsx format. But I need to save reports in .xls format too.</p>
  
  <p>Sorry for my English - I just started to learn it.</p>
  
  <p>Thanks!</p>