can we edit the xml template

this sounds like the perfect plugin for my needs, i need to export posts with custom fields into very specific xml formats, i know when you get a xml format its easy to convert to another, but it would be great if your plugin had the option to edit or use my own xml format, is that possible?

thank you

https://wordpress.org/plugins/wp-all-export/