Create advanced Excel spreadsheets using DotNet

Programming language: C#
License: GNU Lesser General Public License v3.0 only
Tags: Excel     Office    
Latest version: v4.5.3

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This repository has moved to https://github.com/EPPlusSoftware/EPPlus.

The code in this archive represents the final version of EPPlus under LGPL. There will be no more activity here.

EPPlus will from version 5 switch license from LGPL to Polyform Noncommercial 1.0.0 license.
With the new license EPPlus is still free to use in some cases, but will require a commercial license to be used in a commercial business.

More information on the license change on our website

Create advanced Excel spreadsheets using .NET, without the need of interop.

EPPlus is a .NET library that reads and writes Excel files using the Office Open XML format (xlsx). EPPlus has no dependencies other than .NET.  

EPPlus supports:

  • Cell Ranges
  • Cell styling (Border, Color, Fill, Font, Number, Alignments)
  • Data validation
  • Conditional formatting
  • Charts
  • Pictures
  • Shapes
  • Comments
  • Tables
  • Pivot tables
  • Protection
  • Encryption
  • VBA
  • Formula calculation
  • Many more...


This project started with the source from ExcelPackage. It was a great project to start from. It had the basic functionality needed to read and write a spreadsheet. Advantages over other: EPPlus uses dictionaries to access cell data, making performance a lot better. Complete integration with .NET


All support is currently referred to Stack overflow. A tutorial is available in the wiki and the sample project can be downloaded with each version. The old site at Codeplex also contains material that can be helpful. Bugs and new feature requests can be added to the issues tracker.


The project is licensed under the GNU Library General Public License (LGPL).

*Note that all licence references and agreements mentioned in the EPPlus README section above are relevant to that project's source code only.