NPOI 2.5.5

Prefix Reserved
.NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.5 This package targets .NET Framework 4.5. The package is compatible with this framework or higher.
Suggested Alternatives

NPOI 2.5.6

There is a newer version of this package available.
See the version list below for details. 
dotnet add package NPOI --version 2.5.5
                    


                    

                
NuGet\Install-Package NPOI -Version 2.5.5
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="NPOI" Version="2.5.5" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="NPOI" Version="2.5.5" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="NPOI" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add NPOI --version 2.5.5
                    


                    

                
#r "nuget: NPOI, 2.5.5"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package NPOI@2.5.5
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=NPOI&version=2.5.5
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=NPOI&version=2.5.5
                    


                            Install as a Cake Tool

Don't forget to wash your hand during pandamic season.

Difference between Dotnetcore.NPOI and NPOI

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net45 is compatible.  net451 was computed.  net452 was computed.  net46 was computed.  net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1.0K)

Showing the top 5 NuGet packages that depend on NPOI:

Package Downloads
Npoi.Mapper

Convention-based mapper between strong typed object and Excel data via NPOI.
ExcelMapper

An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods.
JoreNoe

Redis并发优化
HIC.RDMP.Plugin

Core package for plugin development
BaseLibrary.ClassLibraryStand

Package Description

GitHub repositories (62)

Showing the top 20 popular GitHub repositories that depend on NPOI:

Repository Stars
Uahh/ToastFish
一个利用摸鱼时间背单词的软件。
laochiangx/Common.Utility
Various helper class
Planshit/Tai
👻 在Windows上统计软件使用时长和网站浏览时长
rmcrackan/Libation
Libation: Liberate your Library
ferventdesert/Hawk
visualized crawler & ETL IDE written with C#/WPF
mini-software/MiniExcel
Fast, Low-Memory, Easy Excel .NET helper to import/export/template spreadsheet (support Linux, Mac)
SciSharp/BotSharp
AI Multi-Agent Framework in .NET
liukuo362573/YiShaAdmin
基于 .NET Core MVC 的权限管理系统，代码易读易懂、界面简洁美观
dotnetcore/Magicodes.IE
Import and export general library, support Dto import and export, template export, fancy export and dynamic export, support Excel, Csv, Word, Pdf and Html.
grandnode/grandnode
Open source, headless, multi-tenant eCommerce platform built with .NET Core, MongoDB, AWS DocumentDB, Azure CosmosDB, Vue.js.
CoreUnion/CoreShop
基于 Asp.Net Core 8.0、Uni-App开发，支持可视化布局的小程序商城系统，前后端分离，支持分布式部署，跨平台运行，拥有分销、代理、团购、拼团、秒杀、直播、优惠券、自定义表单等众多营销功能，拥有完整SKU、下单、售后、物流流程。支持一套代码编译发布微信小程序版、H5版、Android版、iOS版、支付宝小程序版、字节跳动小程序版、QQ小程序版等共10个平台。
GZTimeWalker/GZCTF
The GZ::CTF project, an open source CTF platform.
grandnode/grandnode2
E-commerce platform built with ASP.NET Core using MongoDB for NoSQL storage
MarcosMeli/FileHelpers
The FileHelpers are a free and easy to use .NET library to read/write data from fixed length or delimited records in files, strings or streams
HenJigg/wpf-abp
Cross-platform mobile project and WPF client based on ABP framework Xamarin.Forms
mganss/ExcelMapper
An Excel to object mapper. Maps POCOs to and from Excel. Configuration via convention, attributes, or fluent methods.
ntxinh/AspNetCore-DDD
Full ASP.NET Core 8.0 LTS application with DDD, CQRS and Event Sourcing
skanmera/ExcelMerge
GUI Diff Tool for Excel
HeBianGu/WPF-ControlBase
Wpf封装的自定义控件资源库
donnytian/Npoi.Mapper
Use this tool to import or export data with Excel file. The tool is a convention based mapper between strong typed object and Excel data via NPOI.
Version Downloads Last Updated
2.7.4 70,080 6/29/2025
2.7.3 934,818 3/23/2025
2.7.2 2,444,086 11/9/2024
2.7.1 3,212,517 7/3/2024
2.7.0 3,187,689 3/25/2024
2.6.2 4,693,676 9/11/2023
2.6.1 1,425,630 7/11/2023 2.6.1 is deprecated because it is no longer maintained.
2.6.0 6,183,866 11/17/2022 2.6.0 is deprecated because it is no longer maintained.
2.5.6 13,786,814 4/26/2022 2.5.6 is deprecated because it is no longer maintained.
2.5.5 5,922,247 10/25/2021 2.5.5 is deprecated because it is no longer maintained and has critical bugs.
2.5.4 2,141,131 7/29/2021 2.5.4 is deprecated because it is no longer maintained and has critical bugs.
2.5.3 2,443,384 4/18/2021 2.5.3 is deprecated because it is no longer maintained and has critical bugs.
2.5.2 2,842,059 12/5/2020 2.5.2 is deprecated because it is no longer maintained and has critical bugs.
2.5.1 6,213,985 4/4/2020 2.5.1 is deprecated because it is no longer maintained and has critical bugs.
2.4.1 9,985,837 12/18/2018 2.4.1 is deprecated because it is no longer maintained.
2.3.0 3,947,442 3/20/2017 2.3.0 is deprecated because it is no longer maintained.
2.2.1 2,075,403 5/31/2016 2.2.1 is deprecated because it is no longer maintained.
2.1.3.1 1,497,175 2/22/2015 2.1.3.1 is deprecated because it is no longer maintained.
2.1.3 142,952 12/31/2014 2.1.3 is deprecated because it is no longer maintained.
2.0.6 446,226 4/12/2014 2.0.6 is deprecated because it is no longer maintained.
1.2.5 413,884 7/29/2012 1.2.5 is deprecated because it is no longer maintained.
1.2.4 86,049 11/15/2011 1.2.4 is deprecated because it is no longer maintained.
1.2.3 90,816 1/12/2011 1.2.3 is deprecated because it is no longer maintained.

https://github.com/nissl-lab/npoi/issues/672

#617 Unreadable content detected for xlsx if it contains additional TextBox
#555 BinaryFormatter issue in net5.0
#216 XSSFHyper Link with chinese charset issue
#614 NPOI cannot open some XLS files from Stream
#238 Add new method: XWPFDocument.ChangeOrientation
#590 ST_CfvoType missing autoMin and autoMax
#521 Performance of creating new cells
#434 SXSSFWorkbook possible performance overhead
#570 avoid NotImplementedException for ExternalLinks
#504 Docx File corruption due to the image wrapping (fix again for w14 attributes)
#317 XSSFFont CloneStyleFrom is linking two fonts instead of creating a copy
#519 Get a copy of the CT_Border when about to mutate it
#635 MathX - RoundUp - Bug with double conversion
#131 Add Title to NPOI.SS.UserModel.IChart
#248 make GetCTChart() and GetCTChartSpace public
#599 Corrupted output when XLSX file with "power" symbol in text box is saved
#287 Null Reference Exception in XSSFSheet.CopySheetImages if there are charts in the original sheet
#454 Incorrect intersect validation checking for merged regions
#678 calling XWPFHeaderFooterPolicy.CreateWatermark corrupts the word file

POI Bug FIXES
61064 Support behavior of function CEILING in newer versions of Microsoft Excel
63268 Fix issue with CellUtil.setFont adding unnecessary styles
61652 Attempting to getConditionalFormattingForCell causes NPE
65467 Support IFNA function
65475 SUMIF and SUMIFS functions do not properly handle #N/A values
64605 #595 XWPFRun.FontSize support float
62040 Quotient.evaluate function does not accept cell refences
56392 IllegalArgumentException in IdentifierManager / XWPFDocument
github-150 Add XWPFPicture getWidth and getDepth methods
github-151 Add XWPFRun getStyle method
github-153 Add XWPFParagraph createHyperlinkRun method