FTL - FreeMarker Template File can be used by FreeMarker to auto generate text output when you need to the most. This extension also contains different source text as well. There are different definitions of variables as well as directions in which you can use to your benefit as well. Most of them are used for placeholders, but you can use them for other things as well. When it comes to auto generating HTML web pages, this extension really comes in handy for this purpose. You will be able to use the FTL template file as well as the java file if you want to generate a new text file from a freemarker. There are unlimited choices that you will be given when dealing with this wonderful extension.