Could you pls try with the below custom activity it is having activity like converting excel range to image. you can write your data table into excel and then use this custom activity to create image. i hope it might help your requirement.
Use write range to write the data table data into excel. Open the excel with the excel application scope and use prtsc activity to take screenshot and save it to clipboard and we can convert clipboard data to image. Please refer the below very old thread. thanks.
Another approach worth exploring is svg which does NOT have <table *> element but the layout can be mimicked.
On Accessible SVG tables - Tink - Léonie Watson not only the basic svg content is shown but also considerations about “clean markup” presented.
Depending on where you output your image to svg might be possible even without a conversion to png.