Java Excel

Open-source Java projects categorized as Excel

Top 12 Java Excel Projects

  • easyexcel


  • fastexcel

    Generate and read big Excel files quickly

    Project mention: FileOutputStream v. ByteArrayOutputStream: is there a noticeable difference in memory usage? | /r/javahelp | 2022-12-20

    I'm using fastexcel to create the excel file, and I'm flushing it to the OutputStream after every row is written. Right now, I am using a FileOutputStream to write to disk. When the excel file is done being generated, I read it back in using InputStreamResource and stream the response. My thought process is that a ByteArrayOutputStream keeps everything in memory even if I'm flushing the excel file after every row, so I used the FileOutputStream. Does my logic track here? Or am I unnecessarily slowing things down with expensive filesystem IO?

  • Mergify

    Updating dependencies is time-consuming.. Solutions like Dependabot or Renovate update but don't merge dependencies. You need to do it manually while it could be fully automated! Add a Merge Queue to your workflow and stop caring about PR management & merging. Try Mergify for free.

  • dev-ref

  • zerocell

    Simple, efficient Excel to POJO library for Java

  • spreadsheet

    Spreadsheet Builder (by dsl-builders)

  • LegacyTableView

    simple light weight android library for displaying tabulated data

  • ExcelUtil

    Excel utility for Java to read and write data in declarative way.

  • InfluxDB

    Collect and Analyze Billions of Data Points in Real Time. Manage all types of time series data in a single, purpose-built database. Run at any scale in any environment in the cloud, on-premises, or at the edge.

  • Joeffice

    Java Office Suite - Word processor - Spreadsheet - Presentation - Database - Drawing - Main Libraries: NetBeans Platform and Apache POI - Apache License

    Project mention: Joeffice: Open-Source Java Office Suite | | 2023-07-05
  • worksheet

    Android Excel Sheet Write dependency library for creating Simple Excel Sheets. Depends on Apache poi and Java

  • java-excel-utils

    This Java library allows you to optimize the work with the Apache POI library. There are wrapper classes and utility classes.

    Project mention: Java opensource projects that need help from community. | /r/java | 2023-05-20

    HI,may i suggest you my open source library which manipulates excel files. It uses Apache POI, but tries to give out-of-the-box tools for the user. The project is still in a development phase where I haven't defined many features yet and I'm always looking for many suggestions. Anyone is free to contribute. If you might be interested, here is the link:

  • spring-zerocell

    Zerocell integration to extract data quickly, efficiently and automagically from Excel files in your Spring applications.

  • ExcelPasswordCracker

    A simple brute-force attack password cracker for Excel files with multi-threaded implementation.

    Project mention: Sacked employee with password protected excel files | /r/msp | 2023-03-11
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-07-05.

Java Excel related posts


What are some of the best open-source Excel projects in Java? This list will help you:

Project Stars
1 easyexcel 29,007
2 fastexcel 534
3 dev-ref 91
4 zerocell 75
5 spreadsheet 56
6 LegacyTableView 42
7 ExcelUtil 29
8 Joeffice 24
9 worksheet 13
10 java-excel-utils 8
11 spring-zerocell 6
12 ExcelPasswordCracker 4
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