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Apache POI Manuals & User Guides

Apache POI is an open-source Java library developed by the Apache Software Foundation for reading and writing Microsoft Office file formats.

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Apache POI API Documentation & Guides

Apache POI is an open-source Java library provided by the Apache Software Foundation. It offers APIs for manipulating various file formats based on both the newer Office Open XML standards (OOXML) and Microsoft's OLE 2 Compound Document format (OLE2). With Apache POI, developers can create, modify, and display Microsoft Office files such as Excel spreadsheets, Word documents, and PowerPoint presentations programmatically using Java.

Explore our directory of user guides, API references, and related technical documentation to help you implement and troubleshoot Apache POI in your development projects.

Apache POI manuals

Latest manuals from manuals+ curated for this brand.

APACHE POI Smart Watch User Manual

APACHE POI Smart Watch User Manual

May 7, 2026
Smart Watch Smart Watch User Manual Thank you for choosing our smart watch. This manual provides detailed instructions on how to use the product, including safety precautions, setup steps, function…

Apache POI support FAQ

Common questions about manuals, registration, and support for this brand.

  • What is Apache POI used for?

    Apache POI is a popular Java API used by software developers for reading, writing, and manipulating Microsoft Office documents, including Excel spreadsheets, Word documents, and PowerPoint presentations.

  • Where can I find official documentation for Apache POI?

    Official API documentation, code examples, component overviews, and developer guides can be found directly on the official Apache POI website at poi.apache.org.

  • Does Apache POI require Java to run?

    Yes, Apache POI is a native Java library. Modern releases (version 4.0.1 and later) generally require Java 8 or a newer version to function properly.

  • Can Apache POI create XLSX Excel files programmatically?

    Yes, developers can generate and alter modern XML-based Excel (.xlsx) files by using the XSSF components included within the Apache POI library.