Hello Alex,
The columns appear as squeezed as they are still not realized and measured.
One way would be to
style the exported data setting the e.Styles dictionary with proper CSS values when the ElementExporting is raised for the RadGridView. You can refer to the "Exporting" demo for an example.
As another approach you can check our new formatting options introduced together with
Async Export. You can specifically check
the article on ExportFormat.Html.
Regards,
Didie
Telerik
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