The xml editor can only read from STI files and not from SLF-Archiv.
Some xml files in the Data\TableData folder are invalid for the xml editor, so they needs to be corrected first to use the xml editor.
git-svn-id: https://ja2svn.mooo.com/source/ja2_v1.13_data@864 4f8fa57e-7814-0410-bad4-adc449f26b7c