Hi, it does not use canvas. It uses HTML. Sure, DGXL contains one or two canvas elements, but they're used for measuring strings length and drawing cell background colors.

The actual values are all in HTML. The benefit is that you can use CTRL+F and values are found and selected. You can zoom the page and text will remain crisp.

The values are not in a <table> tag however. <table> values are sorted y,x (rows first, columns second). DGXL sorts values x,y (columns first, rows second). I have to admit that I am not sure what that means for screen readers: I am not an accessibility-expert at this stage. What I do know is that HTML is better than canvas by default in this regard.