it doesn't seem to be able to do that, it just provides an online link, load from your local file works just fine
How do you mean? The files are always downloaded to your local drive.
yeah the tool is working, however I wonder if there's a way to export from planner to hero editor then download the file to your local drive?
Oh you're talking about the build planner. These are currently not connected, if you want to export then best to start in the hero editor.