Grid Export to Excel

Hi- 

I'm trying to export from a radgridview to excel, but receiving the error:   System.EntryPointNotFoundException

I'm using the code from the documentation and have referenced all the appropriate assemblies as described in the documentation:

https://docs.telerik.com/devtools/winforms/controls/gridview/exporting-data/spread-export

Dim spreadExporter As GridViewSpreadExport = New GridViewSpreadExport(myradGridView1)

Dim exportRenderer As New SpreadExportRenderer()

spreadExporter.RunExport("D:\exportedFile.xlsx", exportRenderer)

I can't find anything in the forums that's been discussed on this topic in the last 5 years, so would be glad for any advice. 

Thanks,

I'm running Telerik WinControls version 2019.2.508.40

Stack Trace: 

System.EntryPointNotFoundException
  HResult=0x80131523
  Message=Entry point was not found.
  Source=Telerik.WinControls
  StackTrace:
   at Telerik.WinControls.ISpreadExportRenderer.RegisterFormatProvider(SpreadExportFormat exportFormat)
   at Telerik.WinControls.Export.GridViewSpreadExport.RunExport(String fileName, ISpreadExportRenderer exportRenderer)
   at Form1.CmdQuickExport_Click(Object sender, EventArgs e)