d8q8 / npoi

a .NET library that can read/write Office formats without Microsoft Office installed. No COM+, no interop.

NPOI

This project is the .NET version of POI Java project. With NPOI, you can read/write Office 2003/2007 files very easily.

Get Started with NPOI

Getting Started with NPOI

How to use NPOI on Linux

Stop using Dotnetcore/NPOI nuget package. It’s obsolete!

Contributors

Big thanks to all NPOI contributors!!!

Donation

If this project help you reduce time to develop, you can give me a cup of beer 🍺

Telegram User Group

Join us on telegram: https://t.me/npoidevs

NOTE: QQ or wechat is not recommended.

Advantage of NPOI

a. It's totally free to use

b. Cover most features of Excel (cell style, data format, formula and so on)

c. Supported formats: xls, xlsx, docx.

d. Designed to be interface-oriented (take a look at NPOI.SS namespace)

e. Support not only export but also import

f. Real successful cases all over the world

g. huge amout of basic examples

h. Works on both Windows and Linux

System Requirement

.NET Standard 2.0 (.NET Core)

.NET Framework 4.0 and above