The supplied data appears to be in the Office 2007+ XML.1

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  org.apache.poi.poifs.filesystem.OfficeXmlFileException 에러 해결 POI 를 사용해서 액셀 문서 파싱 할 때 발생할 수 있는 에러 org.apache.poi.poifs.filesystem.OfficeXmlFileException: The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents. You need to call a different part of POI to process this data (eg XSSF instead of HSSF) at org.apache.poi.poifs.storage.HeaderBlock.(HeaderBlock.java:130) at org.apache.poi.poifs.. 개발중/Troubleshooting 2021. 12. 10.