Anybody encounters the same exception? I just copied and pasted this from PartsList
String openXML = "<c:chartSpace xmlns:a=\"http://schemas.openxmlformats.org/drawingml/2006/main\" xmlns:r=\"http://schemas.openxmlformats.org/officeDocument/2006/relationships\" xmlns:c=\"http://schemas.openxmlformats.org/drawingml/2006/chart\" xmlns:c16r3=\"http://schemas.microsoft.com/office/drawing/2017/03/chart\" xmlns:c16=\"http://schemas.microsoft.com/office/drawing/2014/chart\">"
+ "<c:date1904 val=\"0\"/>"
+ "<c:lang val=\"en-US\"/>"
+ "<c:roundedCorners val=\"0\"/>"
+ "<c:style val=\"2\"/>"
+ "<c:chart>"
+ "<c:title>"
+ "<c:tx>"
+ "<c:rich>"
+ "<a:bodyPr anchor=\"ctr\" anchorCtr=\"1\" rot=\"0\" spcFirstLastPara=\"1\" vert=\"horz\" vertOverflow=\"ellipsis\" wrap=\"square\"/>"
+ "<a:lstStyle/>"
+ "<a:p>"
+ "<a:pPr>"
+ "<a:defRPr b=\"0\" baseline=\"0\" i=\"0\" kern=\"1200\" spc=\"0\" strike=\"noStrike\" sz=\"1400\" u=\"none\">"
+ "<a:solidFill>"
+ "<a:schemeClr val=\"tx1\">"
+ "<a:lumMod ...