Yes, this is possible as of yEd 3.16.
After running the Excel Import , make sure all the necessary information is available as custom properties of your nodes. Icon information has to be file names.
If you have not already done so, create a node that represents the people in your org chart. You can reuse the one from the node_labels_with_icons.graphmlz sample. However, you will have to replace the position-and-email label with two distinct labels, one for position and one for email. Create a user-defined palette section and add your node to said section.
Now create a properties mapper configuration that assign your new node template to the nodes in your org chart maps the appropriate custom properties to the corresponding labels of your node.