I don’t know at what point you’re having trouble so I’ll describe the process step by step.
1. When you've finished your tree, click on the "Export" button.
2. When the "Select a Format" dialogue box appears, select the file format you want and then click on the "Continue" button.
3. Enter a file name for the tree in the next dialogue box and click on the "Continue" button. I don't know about other file types, because I've only used DBOs, but DBO files take a minute to export and there really isn't any indication that it's doing anything but it is.
4. Find the folder within the TreeMagik "Exports" folder with the name you specified and copy all the contents into the appropriate game directory. Make sure all the files are in the same folder.
5. Load the tree object into your game.
Viel Glück.
- Jane