It is possible to merge data from excel, but it would also be a fantastic feature to have an excel feature within illustrator. You can fill a table with datasets and link the data to elements multiple times in different artboards. To change an element everywhere you just need to change it in the table (like objects, but only the data). So several different text boxes and different links to imported images can be edited at once. Would be a great feature for all different sizes for Social Media posts. You set up several different sizes change the content once and the content is updated in 16 different artboards in different sizes with different artboard names. Export everything at once and you're ready to go. Huge time saver for our team.