Here you can find a tool to extract jfl files. (jfl files are currently used by Jowood.).
The tool was only tested with files of Transport Gigant
Read the license.txt aswell the readme.txt carefully
There is no support for this tool!
Check if packed Data has an safe header.
If the packed data hasn't safe headers, it will ask the user what to do.
Added comment about file directories in the Usage text.