The supplied data appears to be in the OLE2 Format. You are calling the part of POI that deals with OOXML

"The supplied data appears to be in the OLE2 Format. You are calling the part of POI that deals with OOXML (Office Open XML) Documents. You need to call a different part of POI to process this data (e.g. HSSF instead of XSSF)"这个错误是由于使用了错误的POI部分处理给定的数据格式引起的。您需要调用POI的另一个部分来处理数据。具体来说，如果您处理的是doc文件，应该使用HWPFDocument来读取；如果您处理的是xls文件，应该使用HSSFWorkbook来读取。如果您处理的是docx文件，应该使用XWPFDocument来读取；如果您处理的是xlsx文件，应该使用XSSFWorkbook来读取。请根据您所处理的文件类型选择正确的POI部分进行处理。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* *2* [The supplied data appears to be in the OLE2 Format.](https://blog.csdn.net/qq_40014707/article/details/114318042)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *3* [POI OLE2NotOfficeXmlFileException:The supplied data appears to be in the OLE2 Format问题解决](https://blog.csdn.net/qq_38974638/article/details/116210340)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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