Hello lam,
The reason why you do not see DOC and XLS formats is that they are not one of the supported export formats. As for PDF - can you please verify that you've added the Telerik
.Windows
.Documents
.FormatProviders
.Pdf and Telerik
.Windows
.Zip assemblies in your project?
I suggest you refer to our
online documentation for more information on import/export. Let us know if you need further assistance.
Regards,
Petya
the Telerik team