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Update README.md #3801

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Expand Up @@ -9,7 +9,6 @@ EasyExcel

# 新手必读

* 新手必读 🔥🔥🔥 ：[https://mp.weixin.qq.com/s/8RCyyx1EspiDPFnoYMx-Kw](https://mp.weixin.qq.com/s/8RCyyx1EspiDPFnoYMx-Kw)
* 官方网站：[https://easyexcel.opensource.alibaba.com/](https://easyexcel.opensource.alibaba.com/)
* github地址：[https://github.com/alibaba/easyexcel](https://github.com/alibaba/easyexcel)
* gitee地址：[https://gitee.com/easyexcel/easyexcel](https://gitee.com/easyexcel/easyexcel)
Expand All @@ -20,15 +19,6 @@ EasyExcel
Java解析、生成Excel比较有名的框架有Apache poi、jxl。但他们都存在一个严重的问题就是非常的耗内存，poi有一套SAX模式的API可以一定程度的解决一些内存溢出的问题，但POI还是有一些缺陷，比如07版Excel解压缩以及解压后存储都是在内存中完成的，内存消耗依然很大。
easyexcel重写了poi对07版Excel的解析，一个3M的excel用POI sax解析依然需要100M左右内存，改用easyexcel可以降低到几M，并且再大的excel也不会出现内存溢出；03版依赖POI的sax模式，在上层做了模型转换的封装，让使用者更加简单方便

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# 16M内存23秒读取75M(46W行25列)的Excel（3.2.1+版本）

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