Export to Word based on Word template

PHPOffice offers libraries for both Word and Excel.

I use the Excel library often and it works well once you get the hang of it. It is a little bit tricky integrating it with CI v3 but it's not rocket science. Just a few config items and lines of code to make CI utilize namespace to load the classes.

I have not used the Word library but expect it will function at least as well as the Excel lib.