Apache POI
Mirror of Apache POI (by apache)
fastexcel
Generate and read big Excel files quickly (by dhatim)
| Apache POI | fastexcel | |
|---|---|---|
| 1 | 5 | |
| 1,918 | 672 | |
| 1.1% | 2.7% | |
| 9.5 | 8.9 | |
| 7 days ago | 9 days ago | |
| Java | Java | |
| - | Apache 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Apache POI
Posts with mentions or reviews of Apache POI.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-07-30.
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No SNAPSHOTs
Even ASF does not use Maven to build some of its projects anymore: Beam, Groovy, Lucene, Geode, POI, and Solr are not built with Maven. Those are not the most popular ASF projects, I know, but still, it is something.
fastexcel
Posts with mentions or reviews of fastexcel.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-10-21.
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FileOutputStream v. ByteArrayOutputStream: is there a noticeable difference in memory usage?
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?
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Favorite hidden gem library?
fastexcel the fastest xlsx generation library
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how to create an excel file from a form in an android app
I would use some library like for example this one. So you collect all the data you want to store in a list or map, and iterate over it, then add them to the excel like shown in the documentation of the library (should always be the same way more or less for any library)
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Any good alternatives to Apache POI for creating Excel spreadsheets?
I've only had memory problems with apache poi. I only use https://github.com/dhatim/fastexcel now
What are some alternatives?
When comparing Apache POI and fastexcel you can also consider the following projects:
docx4j - JAXB-based Java library for Word docx, Powerpoint pptx, and Excel xlsx files
easyexcel - 快速、简洁、解决大文件内存溢出的java处理Excel工具
Apache PDFBox - Mirror of Apache PDFBox
Aspose.Cells-for-Java - Aspose.Cells for Java examples, plugins and showcases
documents4j - documents4j is a Java library for converting documents into another document format
zerocell - Simple, efficient Excel to POJO library for Java
spreadsheet - Spreadsheet Builder
ExcelUtil - Excel utility for Java to read and write data in declarative way.
easy-random - The simple, stupid random Java beans/records generator
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