I have three environments where I'm using the Excel Exporter within one app, but the problem I've experienced is that I cannot export the configurations of the export templates from my local environment to a cloud environment or vice versa. The issue is that I'm losing time rebuilding the export templates on the other environments. The solution would be making two extra buttons. One where you can make a XML configuration of the selected export template's and one for importing a XML configuration. The solution is already applied in the Excel Importer, you can use that as a reference.
You can use https://marketplace.mendix.com/link/component/16873. I will make sure we update it so it is in line with Excel Exporter once again.