How to implement export to excel functionality for the ag grid having sparkline chart (from highcharts library) integrated? - charts

I am having sparkline charts integrated with ag grid and it's working as expected but as per requirement, I also have to implement export to excel functionality which should export all the row details from ag-grid along with the sparkline chart details.
Things tried:
I have tried most common way to export the details from ag-grid and which is working as expected. Things that I can see while exporting the excel sheet is only the data points values (numbers) that I have passed to plot sparkline chart per row instead of exporting the HTML of the chart.
With the export of data values only, I don't think it gives much detailed information to the user.
Expected Outcome:
I want to export the ag grid details along with the sparkline charts HTML contents. That simply means, if the contents are exported from Ag-grid having sparkline chart, the actual sparkline chart should be exported instead of data points used to plot charts.
In common terms, I want to picturise the sparkline chart as it is in the exported sheet instead of showing values in form of numbers
Is there any way to export entire chart which is already plotted on web app, and I want same to be presented into excel sheet for better representation of sparkline charts when export to excel should happen (highcharts library)?
Note:
I have used ag-grid and integrated sparkline charts from highcharts library. The entire functionality is implemented with help of Angular 7

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