for(XSLFTableRow row : tbl){
List<XSLFTableCell> cells = row.getCells();
extractContent(cells.toArray(new XSLFTableCell[cells.size()]), skipPlaceholders, xhtml, slideDesc);
}
} else if (sh instanceof XSLFGraphicFrame) {
XSLFGraphicFrame frame = (XSLFGraphicFrame) sh;
XmlObject[] sp = frame.getXmlObject().selectPath(
"declare namespace p='http://schemas.openxmlformats.org/presentationml/2006/main' .//*/p:oleObj");
if (sp != null) {
for(XmlObject emb : sp) {
XmlObject relIDAtt = emb.selectAttribute(new QName("http://schemas.openxmlformats.org/officeDocument/2006/relationships", "id"));
if (relIDAtt != null) {