# alibaba/easyexcel

快速、简洁、解决大文件内存溢出的java处理Excel工具

Repository: https://github.com/alibaba/easyexcel
Canonical: https://ross.abutalabs.com/products/easyexcel
Homepage: https://easyexcel.opensource.alibaba.com
Language: Java
License: Apache-2.0
License Family: permissive
Topics: excel, poi, jxl, xls, xlsx, java, oom
Archived: true
Last push: 2024-10-29T06:07:07+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3130, "days_push": 673, "days_rel": 721, "gap_med": null, "n_releases_24m": 1}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 33663, forks 7558 (observed 2026-08-28T04:11:58.395738+00:00)

## What it is
EasyExcel is a Java library for reading and writing Excel files (xls, xlsx, and CSV) built on top of Apache POI, redesigned to avoid out-of-memory errors on large files. It maps Excel columns to Java entity classes via annotations and uses disk caching so even very large spreadsheets can be processed with minimal memory.

## Use cases
- read large excel files without running out of memory in java
- export data to xlsx from a spring boot web app
- parse excel uploads and map rows to java objects
- write millions of rows to an excel spreadsheet efficiently
- import spreadsheet data into a database from java
- generate excel download endpoints in a web application

## When to choose
- you need to read or write very large Excel files in Java with low memory usage
- you want simple annotation-based mapping between Excel columns and Java classes
- you are serving Excel uploads/downloads in a JVM web application

## When to avoid
- you need actively developed features - the project has entered maintenance mode with no new features planned
- you are not on the JVM
- you need rich Excel styling, charts, or advanced formatting features beyond read/write

## Facets
- artifact type: library
- maturity: maintenance
- function: parser, file-system, developer-tools
- domain: files, developer-tools
- platform: jvm, cross-platform
- tags: excel, xlsx, xls, csv, poi, memory-efficient, spreadsheet, java-library, large-files, oom-prevention, data-engineering

## Member repositories
- alibaba/easyexcel (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:58.395738+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:28:09.431533+00:00, confidence not recorded.
  - readme: https://github.com/alibaba/easyexcel (fetched 2026-08-28T04:11:58.395738+00:00, sha fc9d1fb5cf4f)
  - homepage: https://easyexcel.opensource.alibaba.com (fetched 2026-08-29T07:48:35.967535+00:00, sha ef57b596dddf)
  - site_page: https://easyexcel.opensource.alibaba.com/docs/current (fetched 2026-08-29T07:48:35.979662+00:00, sha ac18c5d6b742)
  - site_page: https://easyexcel.opensource.alibaba.com/docs/current/api (fetched 2026-08-29T07:48:35.982045+00:00, sha 823ce85e86d2)
  - site_page: https://easyexcel.opensource.alibaba.com/docs/3.0.x (fetched 2026-08-29T07:48:35.984219+00:00, sha 9067bff2f691)
  - site_page: https://easyexcel.opensource.alibaba.com/docs/2.x (fetched 2026-08-29T07:48:35.986266+00:00, sha ad85ab078623)
- Data as of 2026-08-30T08:39:29.467469+00:00.