The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents.

您提到的"The supplied data appears to be in the Office 2007 XML. You are calling the part of POI that deals with OLE2 Office Documents."是在使用POI处理数据时遇到的问题。根据引用中的信息，您正在调用处理OLE2 Office文档的POI部分，而您需要调用另一个部分来处理Office 2007 XML数据，例如使用XSSF代替HSSF。