This is the way how Excel encodes unicode characters here and thus POI performs the same conversion as well, see https://bz.apache.org/bugzilla/show_bug.cgi?id=57008#c8 for the related issue and a longer explanation.
Dominik On Jan 12, 2018 09:03, "Matthias Gerth" <matthias.ge...@avelon.ch> wrote: Hi, XSSFCell seems to encode certain character sequences as unicode characters. How can I prevent this? Do I need to apply some kind of character escaping? e.g. cell.setCellValue("LUS_BO_WP_x24B8_AI"); // The cell value now is „LUS_BO_WPⒸAI" In Unicode Ⓒ is U+24B8 Regards Matthias Gerth