Telerik reports are rendered in a specific format depending on the media they are displayed in, or the format request by an export operation.
For example, if you use an HTML5 Viewer to display a report, the report will be requested in HTML format. Details how items will be rendered are available in Design Considerations for HTML Rendering
. The rendered HTML aims to visualize content as close as possible to the report designed in the report designer. Interactivity like animations are not supported as such features are media specific and cannot be supported in all rendering formats.
If you are already using Telerik UI for AJAX or Telerik Kendo UI, there are libraries allowing you to export pages in Image, PDF, SVG format. With such approach you can keep the interactivity in browser and get a static document at the end. For more details, please check Exporting HTML From Web App to Image.
If a report is exported in XLS(X) format, items will be rendered per the Design Considerations for Excel Rendering.
The Excel rendering mechanism is not translating the Graph settings into native Excel chart. Exporting a Graph in Excel will result in a bitmap or EMF inserted in the file.
I can suggest you to test custom approaches for generating such Excel files e.g. How to create Excel Chart from C# (external blog).
I hope this information is helpful.
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