dynamics vs fastexcel

dynamics

Java library for handling nested dynamic data (by alexheretic)

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fastexcel

Generate and read big Excel files quickly (by dhatim)

Projects Document Processing Excel Java Performance

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dynamics		fastexcel
	Project
1	Mentions	5
24	Stars	609
-	Growth	2.3%
3.1	Activity	8.8
9 months ago	Latest Commit	4 days ago
Java	Language	Java
Apache License 2.0	License	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.

dynamics

Posts with mentions or reviews of dynamics. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-10-21.

Favorite hidden gem library?
22 projects | /r/java | 21 Oct 2022

Dynamics for parsing xml easily and quickly

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.

FileOutputStream v. ByteArrayOutputStream: is there a noticeable difference in memory usage?
1 project | /r/javahelp | 20 Dec 2022

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?
Favorite hidden gem library?
22 projects | /r/java | 21 Oct 2022

fastexcel the fastest xlsx generation library
how to create an excel file from a form in an android app
1 project | /r/androiddev | 14 Dec 2021

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)
Any good alternatives to Apache POI for creating Excel spreadsheets?
6 projects | /r/java | 3 Jul 2021

I've only had memory problems with apache poi. I only use https://github.com/dhatim/fastexcel now

What are some alternatives?

When comparing dynamics and fastexcel you can also consider the following projects:

StreamEx - Enhancing Java Stream API

Apache POI - Mirror of Apache POI

Vert.x - Vert.x is a tool-kit for building reactive applications on the JVM

easyexcel - 快速、简洁、解决大文件内存溢出的java处理Excel工具

openapi-generator - OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Aspose.Cells-for-Java - Aspose.Cells for Java examples, plugins and showcases

hypersistence-utils - The Hypersistence Utils library (previously known as Hibernate Types) gives you Spring and Hibernate utilities that can help you get the most out of your data access layer.

spreadsheet - Spreadsheet Builder

Kaitai Struct - Kaitai Struct: declarative language to generate binary data parsers in C++ / C# / Go / Java / JavaScript / Lua / Nim / Perl / PHP / Python / Ruby

zerocell - Simple, efficient Excel to POJO library for Java

html-parser-benchmark - html parsers benchmark for several libraries

docx4j - JAXB-based Java library for Word docx, Powerpoint pptx, and Excel xlsx files