How to edit a UBOX file
1 - Rename "yourfile.ubox" to "yourfile.ubox.zip"
2 - Extract contents of zip file
3 - Open and edit the xml file contained inside.
4 - Use program to compress xml file into a zip file
5 - Rename "newfile.zip" to "newfile.ubox"
Let me know what step you're having trouble with and I'll explain in more detail.
XML was more easy
I agree. Two new things that the new ubox file format will let us do are (that we couldn't do with xml by itself):
- Open Universe Sandbox by double clicking on a ubox file.
- Bundle image maps, help files, and multiple xml files together. (not yet implemented)