Import excel with path to RadSpreadsheet

[jose]

Hi, I'm trying to bind between an excel file and the RadSpreadsheet control using what I checked in your forums.
The code I use and does not work is:
     Dim formatProvider As Telerik.Windows.Documents.Spreadsheet.FormatProviders.IWorkbookFormatProvider = New Telerik.Windows.Documents.Spreadsheet.FormatProviders.OpenXml.Xlsx.XlsxFormatProvider
                        Using input As Stream = New FileStream(filePath, FileMode.Open)
                            RadSpreadsheet1.Sheets.AddRange(Telerik.Web.Spreadsheet.Workbook.FromDocument(formatProvider.Import(input)).Sheets)  
                        End Using

In the UI part
  </div>
        <telerik:RadSpreadsheet runat="server" ID="RadSpreadsheet1">
<div>


The version of the spreadsheet is 2016.2.421.40 and telerik web.UI 2016.2.504.40.
I'm trying to get this code working in chrome.