NetOffice Framework

NetOffice Framework is a set of libraries and tools for building addins, extending and automating Microsoft Office applications.

NetOffice supports extending and automating Microsoft Office applications: Excel, Word, Outlook, PowerPoint, Access, Project and Visio.

Getting Started

Install NetOffice Framework as a NuGet package (list of all NetOfficeFw packages) into you Visual Studio project and develop Microsoft Office solution.

Package Manager
PM> Install-Package NetOfficeFw.Word
PM> Install-Package NetOfficeFw.Word -Version 1.7.3
Notice: Using NetOffice.Core packages Learn how to migrate.

Official NetOffice libraries use new NetOfficeFw prefix and are published by official NuGet account named netoffice.


  • Microsoft Office integration without version limitations
  • All features of Microsoft Office versions 2010, 2013 and 2016 are included
  • Active support in version independent development
  • Syntactically and semantically identical to the Microsoft Interop Assemblies
  • No training if you already know the MS Office object model
  • More readable code with automatic management of COM proxies
  • Usable with .NET version 4.0 or higher
  • Easy add-in development
  • No deployment hurdles, no registration
  • No dependencies, no Interop Assemblies, no need for VSTO
  • Visual Studio Project Templates and Wizards available