I have gone through this Aspose.Cells API.
Specifically this example which comes close to my requirement
https://docs.aspose.com/display/cellsnet/Convert+an+Excel+Chart+to+Image
But this example show how to convert a piechart which is existing in excel file. My requirement is to using an openxml file as input to render chart image. For example, I attached a sample chart defined in drawingML. I obtained this xml by unzipping an xlsx file.
So do you have any function that takes the deserialized object of openxml and give EMF/PNG file?
Thanks