---
title: "C# Office library: Convert and view without Interop | Nutrient .NET SDK"
canonical_url: "https://www.nutrient.io/guides/dotnet/office/"
md_url: "https://www.nutrient.io/guides/dotnet/office.md"
last_updated: "2026-05-21T17:12:02.195Z"
description: "Learn about the C# Office library within Nutrient .NET SDK. Work with Microsoft Office documents (Word, Excel, PowerPoint) programmatically in your .NET applications."
---

# C# Office library

Nutrient.NET SDK’s (formerly GdPicture.NET) offers a robust C# MS Office library that can be easily deployed in your application. Accurately convert any MS Office document to PDF without relying on a plugin or third-party application like MS Word or OpenOffice.org. Enable a robust document viewer to open, view, read, write, manage, and edit Office formats. Integrate the ability to fill forms, redact sensitive information, add annotations, add signatures, and more. Get started for free and explore our guides and code samples to learn how you can quickly integrate our library into your application.

## Key capabilities

- **High fidelity** — Convert any MS Office file to PDF or image formats

- **No dependencies** — Doesn’t require a plugin or third-party application like MS Word or OpenOffice.org

- **Office viewer** — Open, display, and view DOC, XLS, and PPT files

- **Edit** — Split, merge, insert, append, and delete pages

- **Prebuilt features** — Annotate, sign, form fill, redact, and more

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- [C#.NET PDF library](/guides/dotnet.md)
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- [Changelog for .NET](/guides/dotnet/changelog.md)
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- [Example Project](/guides/dotnet/getting-started/catalog-example.md)


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> Part of [Supported file types](/guides/dotnet/about/file-type-support.md)

## Related pages

- [C# TIFF library](/guides/dotnet/tiff.md)