@grgohr I could kiss you! So I initially opened all .xml from directory into firefox, only one came up broken. I deleted that one and tried again, still froze. I then opened every xml in N++, went to ENCODING | Convert to ansi, then convert to UTF-8 (not bom). Then saved the xml. All is good, you saved my library. There should be a forum faq with these steps for Windows users. If I missed it sorry. Did find plenty if people with similar issues on github and other sources after here.