Therefore the discussion is confined to HSSF and XSSF components. This tutorial guides you through the process of working on Excel files using Java. HPBF (Horrible PuBlisher Format) − It is used to read and write MS-Publisher files. HDGF (Horrible DiaGram Format) − It contains classes and methods for MS-Visio binary files. HSLF (Horrible Slide Layout Format) − It is used for read, create, and edit PowerPoint presentations. XWPF (XML Word Processor Format) − It is used to read and write docx extension files of MS-Word. HWPF (Horrible Word Processor Format) − It is used to read and write doc extension files of MS-Word. HPSF (Horrible Property Set Format) − It is used to extract property sets of the MS-Office files. XSSF (XML Spreadsheet Format) − It is used for xlsx file format of MS-Excel. HSSF (Horrible Spreadsheet Format) − It is used to read and write xls format of MS-Excel files. It is used to read different files explicitly. POIFS (Poor Obfuscation Implementation File System) − This component is the basic factor of all other POI elements. The list of components of this API is given below. Components of Apache POIĪpache POI contains classes and methods to work on all OLE2 Compound documents of MS Office. It contains classes and methods to decode the user input data or a file into MS Office documents. It is an open source library developed and distributed by Apache Software Foundation to design or modify Microsoft Office files using Java program. What is Apache POI?Īpache POI is a popular API that allows programmers to create, modify, and display MS Office files using Java programs. For example, an application developed for the Finance department of a company will be required to generate all their outputs in Excel.Īny Java programmer who wants to produce MS Office files as output must use a predefined and read-only API to do so. Sometimes, an application is even expected to receive Excel files as input data. Many a time, a software application is required to generate reports in Microsoft Excel file format.
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