The supplied data appears to be in the OLE2 Format. You are calling the part of POI that deals with
ThesupplieddataappearstobeintheOLE2Format.YouarecallingthepartofPOIthatdealswithOOXML(OfficeOpenXML)Documents.YouneedtocalladifferentpartofPOItoprocessthisdata(egHSSFinsteadofXSSF