I have a couple of applications I've built that allow a nice GUI, which exports text box fields and variable data into both excel and word format. I currently use the AJAX plugin to load in either a word or excel .xml file, carry out a find and replace to update the information contained. Then use either the browser plugin (preferred) or NW.js to download the updated file.
Limitations on this method are that I am unable to input pictures into the created documents. I created a work around for the excel outputs, put if its possible I'd like a plugin so that i can develop further and have a more efficient solution.
There are a couple of directions I've been pointed at, but they are outside of my comfort zone to learn / implement.
Anyone that is interested give me a PM / reply back and we can look at in more details.