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XSSF if you need to read or write an OOXML Excel file using Java (XLSX). You'd use HSSF if you needed to read or write an Excel file using Java (XLS). We say that POIFS is the most complete and correct implementation of this file format to date!
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If you needed to inter-operate with software running on the Windows platform. Alternatively, you'd use POIFS to write OLE 2 Compound Document Format You'd use POIFS if you had a document written in OLE 2 Compound Document Format, probably written using So why should you use POIFS, HSSF or XSSF? Such as web spiders, index builders, and content management systems. When practical, we donateĬomponents directly to those projects for POI-enabling them.Ī major use of the Apache POI api is for Text Extraction applications Open with whom we collaborate in documenting theįor which we provide format interpretors.
We would welcome contributions.Īs a general policy we collaborate as much as possible with other projects to
The project has some support for Outlook (HSMF). Work is progressing for Word documents (WP=HWPF+XWPF) and This is most developed for Excel workbooks (SS=HSSF+XSSF). The project provides a low level API to support the Open Packaging Conventionsįor each MS Office application there exists a component module that attempts to provide a common high level Java api to both OLE2 and OOXMLĭocument formats. Office OpenXML Format is the new standards based XML file format found in Microsoft Office 20. The project provides APIs for the OLE2 Filesystem (POIFS) and OLE2 files include most Microsoft Office files such as XLS, DOC, and PPT as well as MFC serialization API based file formats. We have a complete API for porting other OOXML and OLE2 formats and welcome others to participate. In addition, you can read and write MS Word and MS PowerPoint files using Java. In short, you can read and write MS Excel files using Java. The Apache POI Project's mission is to create and maintain Java APIs for manipulating various file formatsīased upon the Office Open XML standards (OOXML) and Microsoft's OLE 2 Compound Document format (OLE2). We did some work to verify that compilation with Java 11 is working and 11 January 2019 - Initial support for JDK 11 XMLBeans requires Java 6 or newer since version 3.0.2.
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The XMLBeans JIRA project has been reopened and feel free to open issues. People interested should also follow the POI dev list to track progress. The Apache POI project has unretired the XMLBeans codebase and is maintaining it as a sub-project,ĭue to its importance in the poi-ooxml codebase. The Apache POI team is pleased to announce the release of XMLBeans 3.1.0. XML external entity attack 26 March 2019 - XMLBeans 3.1.0 available This issue was discovered by Artem Smotrakov from SAP
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Affected users are advised to update to Apache POI 4.1.1 Via XML External Entity (XXE) Processing.Īpache POI 4.1.0 and before: users who do not use the tool XSSFExportToXmlĪre not affected. Read files from the local filesystem or from internal network resources When using the tool XSSFExportToXml to convert user-provided MicrosoftĮxcel documents, a specially crafted document can allow an attacker to XML external entity attack 20 October 2019 - CVE-2019-12415 - XML External Entity (XXE) Processing in Apache POI versions prior to 4.1.1 This issue was fixed a few years ago but on review, we decided we should have a CVEĪffected users are advised to update to Apache XMLBeans 3.0.0 or above When parsing XML files using XMLBeans 2.6.0 or below, the underlying parserĬreated by XMLBeans could be susceptible to XML External Entity (XXE) attacks. 13 January 2021 - CVE-2021-23926 - XML External Entity (XXE) Processing in Apache XMLBeans versions prior to 3.0.0 Version (currently v2.17.1) - including log4j-api.
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We strongly recommend that they upgrade all their log4j dependencies to the latest If any POI or XMLBeans user uses log4j-core to control their logging of their application, The security vulnerabilities are not in log4j-api - they are in log4j-core. POI 5.1.0 and XMLBeans 5.0.2 only have dependencies on log4j-api 2.14.1. The Apache POI PMC has evaluated the security vulnerabilities reported POI requires Java 8 or newer since version 4.0.1. People interested should also follow the dev list to track progress.
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Several dependencies were updated to their latest versions to pick up security fixes and other improvements.Ī full list of changes is available in the change log.
The Apache POI team is pleased to announce the release of 5.2.0.
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