Instructions: In the main dir is a folder named "data", inside that folder is a file named "techtreex". BACKUP THAT FILE (though I have included a backup in the download)
I create an "original" folder in my main dir to store modded files.
Simply replace the original "techtreex" file with the unzipped downloaded file. You will notice that the downloaded file is in caps, I do that to show the file has been modded. The program still reads it.