?

 

REF:

https://*.com/questions/35098595/export-pictures-excel-vba-in-original-resolution

https://*.com/questions/49106816/how-to-export-chart-as-picture-with-highest-resolution

https://*.com/questions/33125021/control-resolution-of-exported-chart

https://www.mrexcel.com/board/threads/increase-resolution-of-a-chart-exported-as-picture-using-vba.548986/

https://peltiertech.com/enhanced-export-chart-procedure/

https://www.xltoolbox.net/ng/

 

Create high-res (300dpi) images from Excel charts and plots

https://blogs.kent.ac.uk/psychotech/2017/04/11/create-high-res-300dpi-images-from-excel-charts-and-plots/