DO/Modding/Tools/BTBXML
From Dark Omen Wiki
Download Rob's BTBXML Converter ->
http://en.dark-omen.org/downloads/view-details/1.-modding-tools/1.-map-editor/btbxml.html
Install latest Python -> http://www.python.org/download/
Unzip the BTBXML download and Right Click to select Edit with Idle on either btbxml.py (to convert B1_01.BTB to XML) or xmlbtb.py that will covert xml to .BTB
Once Edit with Idle has been select it will open the python file, so select Run at the top of the menu bar and then Run Module or press F5
The XML Output file will be found in C:\Documents and Settings\(YourOwnProfileName) and is called out.xml, double click to run and Internet Explorer will display its contents for editing and once finshed use the xmlbtb.py script to convert your xml file back into B1_01.BTB