Document Viewer .NET API

This powerful .NET document processing API supports rendering of 170+ format formats to HTML5, image, and PDF formats, with more than 130 formats supported for auto-detection.

Directory	Description
Demos	Contains demo projects that demonstrate product features.
Examples	C# examples and sample files that will help you learn how to use product features.
Plugins	Contains Visual Studio plugins related to GroupDocs.Viewer.

Features

Viewing documents by rendering as HTML5, images, or PDF.
Rendering documents as self-contained HTML pages with embedded resources.
Rendering files in lossless PNG format or lossy JPG compressed format.
Rotating or reordering pages when rendering.
Getting information about document and rendering results, such as file type and number of pages on the output.
Getting a list of folders in an archive.
Getting a list of layers and layouts in a CAD drawing.
Getting a list of folders in an Outlook data file.
Getting information about the limitations of PDF documents.
Getting project start and end dates from an MS Project file.
Minifying HTML and CSS.
Rendering to responsive HTML.
Adding text watermarks on output pages.
Rendering documents with comments and notes.
Rendering documents using custom fonts.
Replacing missing fonts when rendering.

Supported formats

Microsoft Word®: DOC, DOCM, DOCX, DOT, DOTM, DOTX
Microsoft Excel®: XLS, XLSB, XLSM, XLSX, XLT, XLTX, XLAM
Microsoft PowerPoint®: PPT, PPTX, PPTM, PPS, PPSX, PPSM, POT, POTM, POTX
Microsoft Visio®: VDW, VDX, VSD, VSDM, VSDX, VSS, VSSM, VSSX, VST, VSTM, VSTX, VSX, VTX
Microsoft Project®: MPP, MPT, MPX
Microsoft OneNote®: ONE
OpenOffice®: ODG, OTG, OXPS, ODP, OTP, ODS, OTS, ODT, OTT, OXPS
AutoCAD®: DGN, DWF, DWT, DWG, DXF
CorelDraw®: CDR
Adobe Photoshop®: PSD, PSB
IBM Notes: NSF
Source code: CS, VB, AS, AS3, and other
Image: GIF, ICO, JP2, JPF, JPX, JPM, J2C, J2K, JPC, JPG, JPEG, SVG, TIF, TIFF
Markup: HTML, MHT, MHTML, MD
Portable: PDF
Archive: TAR, ZIP, BZ2, RAR, GZ
Email: EML, EMLX, MSG, OST, PST
Metafile: CGM, EMF, WMF, WMZ, EMZ, CMX
Other: IFC, STL, PS, XPS, TEX, SXC, DJVU, DNG, DIB, EPS

Platform independence

GroupDocs.Viewer for .NET does not require any external software or third-party tools and supports any 32-bit or 64-bit operating system with .NET Framework, .NET Core, or .NET installed. The supported operating systems and platforms are listed below:

Windows: Microsoft Windows Server 2003 and later, Microsoft Windows XP, Vista, 7, 8, 8.1, 10, 11
Mac: Mac OS X
Linux: Linux (Ubuntu, OpenSUSE, CentOS and others)
Development Environments: Microsoft Visual Studio, Microsoft Visual Studio for Mac, Rider from JetBrains
Supported Frameworks: .NET Framework, .NET Core, and .NET

Get started

To fetch and reference the GroupDocs.Viewer assembly in your project, execute Install-Package GroupDocs.Viewer from the Package Manager Console in Visual Studio. To update the GroupDocs.Viewer for .NET, please execute Update-Package GroupDocs.Viewer to get the latest version.

Please check the GitHub Repository for other common usage scenarios.

C# code to render XLSX file to HTML

using (Viewer viewer = new Viewer("invoice.xlsx"))
{
   HtmlViewOptions options = 
       HtmlViewOptions.ForEmbeddedResources();

   viewer.View(options);
}

groupdocs-viewer / GroupDocs.Viewer-for-.NET