07 September 2018 - POI 4.0.0 available The Apache POI team is pleased to announce the release of 4.0.0. Featured are a handful of new areas of functionality and numerous bug fixes.

A summary of changes is available in the. A full list of changes is available in the.

People interested should also follow the to track progress. See the page for more details. POI 4.0.0 is the first release to require Java 8 or newer. 29 June 2018 - XMLBeans 3.0.0 available The Apache POI team is pleased to announce the release of XMLBeans 3.0.0.

Featured are a handful of bug fixes. The Apache POI project has unretired the XMLBeans codebase and is maintaining it as a sub-project, due to its importance in the poi-ooxml codebase. A summary of changes is available in the. People interested should also follow the to track progress. The XMLBeans has been reopened and feel free to open issues.

The upcoming POI 4.0.0 release will use XMLBeans 3.0.0. XMLBeans 3.0.0 requires Java 6 or newer. 15 August 2017 - Initial support for JDK 9 We did some work to verify that compilation with Java 9 is working and that all unit-tests pass.

See the details in the. 20 March 2017 - CVE-2017-5644 - Possible DOS (Denial of Service) in Apache POI versions prior to 3.15 Apache POI in versions prior to release 3.15 allows remote attackers to cause a denial of service (CPU consumption) via a specially crafted OOXML file, aka an XML Entity Expansion (XEE) attack. Users with applications which accept content from external or untrusted sources are advised to upgrade to Apache POI 3.15 or newer. Thanks to Xiaolong Zhu and Huijun Chen from Huawei Technologies Co., Ltd. For reporting the vulnerability. Mission Statement. The Apache POI Project's mission is to create and maintain Java APIs for manipulating various file formats based upon the Office Open XML standards (OOXML) and Microsoft's OLE 2 Compound Document format (OLE2).

In short, you can read and write MS Excel files using Java. In addition, you can read and write MS Word and MS PowerPoint files using Java. Apache POI is your Java Excel solution (for Excel 97-2008). We have a complete API for porting other OOXML and OLE2 formats and welcome others to participate. OLE2 files include most Microsoft Office files such as XLS, DOC, and PPT as well as MFC serialization API based file formats.

The project provides APIs for the. Office OpenXML Format is the new standards based XML file format found in Microsoft Office 2007 and 2008. This includes XLSX, DOCX and PPTX. The project provides a low level API to support the Open Packaging Conventions using. For each MS Office application there exists a component module that attempts to provide a common high level Java api to both OLE2 and OOXML document formats. This is most developed for. Work is progressing for.

The project has some support for. Microsoft opened the specifications to this format in October 2007. We would welcome contributions. There are also projects for,. As a general policy we collaborate as much as possible with other projects to provide this functionality. Examples include: for which there are serializers for HSSF; with whom we collaborate in documenting the XLS format; and /, for which we provide format interpretors. When practical, we donate components directly to those projects for POI-enabling them.

Why should I use Apache POI? A major use of the Apache POI api is for applications such as web spiders, index builders, and content management systems. So why should you use POIFS, HSSF or XSSF?

You'd use POIFS if you had a document written in OLE 2 Compound Document Format, probably written using MFC, that you needed to read in Java. Alternatively, you'd use POIFS to write OLE 2 Compound Document Format if you needed to inter-operate with software running on the Windows platform. We are not just bragging when we say that POIFS is the most complete and correct implementation of this file format to date! You'd use HSSF if you needed to read or write an Excel file using Java (XLS). You'd use XSSF if you need to read or write an OOXML Excel file using Java (XLSX). The combined SS interface allows you to easily read and write all kinds of Excel files (XLS and XLSX) using Java.

Additionally there is a specialized SXSSF implementation which allows to write very large Excel (XLSX) files in a memory optimized way. Components The Apache POI Project provides several component modules some of which may not be of interest to you.

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Use the information on our page to determine which jar files to include in your classpath.

Welcome to JavaRanch. There's a library called Apache POI that can work with documents (you can find a simple example of how to create a file using it at ), but I think it will be a frustrating experience to use it for changes to complex documents (and I'm not even sure that it would ultimately be successful). Are you creating a new file, or do you want to modify an existing file? If the former, you might have better luck creating an file - which is a much simpler file format to generate, and which also supports tables and images. I am already using this Apache POI and I am going to try to modify the existing doc file with the insertion of table and image. I'd advise to create a Word document that looks like the one you want to create, and then save it as RTF.

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Then you can study the RTF that gets created (which is text, and not too hard to understand). Now you can either a) create an entire RTF file from scratch that contains your content, or b) use an existing RTF file as template which contains placeholders for the content you want to add (something like '$image$' or '$table$'); these can then be replaced with the actual content using operations. Harish Rudra wrote:Thank you for replying whether Aspose which you told is an open source. If it is opensource i am pretty happy.Because I am doing an application in which complex doc operation should be done.thanks in advance No, Aspose is not an open source technology. In fact, from some stack traces that I've seen they employ an obfuscator to protect their product - a logical decision if you ask me! They do allow a free trial where Aspose simply applies a watermark to all generated documents indicating it is unlicensed.

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We did a lot of searching and quite frankly this is the best solution available - but it has its price. If you're working on an open source (i.e. Not for ) project, this is probably not the solution for you. As Ulf pointed out, working with RTF may be an option for you - but realize that the RTF specification is. You can download the entire spec here. Harish Rudra wrote:I am already using this Apache POI and I am going to try to modify the existing doc file with the insertion of table and image.