Convert XML SpreadsheetML to HTML, JPG, PNG, and PDF using GroupDocs.Viewer .NET

Introduction

In today’s data-driven world, the ability to convert and render complex Excel files into various formats is essential for web presentation, image previews, or document archiving. This tutorial will guide you through using GroupDocs.Viewer .NET to transform Excel 2003 SpreadSheetML XML documents into HTML, JPG, PNG, or PDF effortlessly.

What You’ll Learn:

How to render XML SpreadsheetML files as multi-page HTML.
Techniques for converting Excel 2003 XML documents into image formats like JPG and PNG.
Steps to transform Excel XML data into PDF format.
Best practices for optimizing performance with GroupDocs.Viewer .NET.

Let’s begin by setting up your environment and understanding the prerequisites needed for this implementation.

Prerequisites

Before we start, ensure you have the following:

.NET Framework or .NET Core: Depending on your project setup.
GroupDocs.Viewer Library: Version 25.3.0 or later.
Visual Studio: Any recent version that supports .NET development.
Basic understanding of C# and XML structures.

Environment Setup

Install GroupDocs.Viewer for .NET: You can add the library using NuGet Package Manager Console or .NET CLI:
NuGet Package Manager Console
```
Install-Package GroupDocs.Viewer -Version 25.3.0
```
.NET CLI

dotnet add package GroupDocs.Viewer –version 25.3.0


2. **License Acquisition:**
To fully utilize GroupDocs.Viewer, consider acquiring a license. You can start with a free trial or obtain a temporary license for extended testing.

- [Purchase](https://purchase.groupdocs.com/buy) a full license.
- Get a [free trial](https://releases.groupdocs.com/viewer/net/) to explore features.
- Request a [temporary license](https://purchase.groupdocs.com/temporary-license/).

3. **Basic Initialization:**
Here's how you can set up your GroupDocs.Viewer instance:

```csharp
using GroupDocs.Viewer;

string filePath = "YOUR_DOCUMENT_DIRECTORY/SAMPLE_XML_SPREADSHEETML";
LoadOptions loadOptions = new LoadOptions(FileType.Excel2003XML);

using (Viewer viewer = new Viewer(filePath, loadOptions))
{
    // Your rendering logic will go here
}

Setting Up GroupDocs.Viewer for .NET

With the environment ready, let’s implement each feature. We’ll explore converting XML SpreadsheetML into different formats step-by-step.

Rendering XML SpreadsheetML to Multi-page HTML

Overview: Converting Excel 2003 XML files to HTML allows efficient web page display of spreadsheet data. This section guides you through rendering the document as a multi-page HTML file with embedded resources.

Step 1: Configure Load Options

using GroupDocs.Viewer;
using GroupDocs.Viewer.Options;
using System.IO;

string outputDirectory = "YOUR_OUTPUT_DIRECTORY";
string pageFileFullPath = Path.Combine(outputDirectory, "Excel_2003_Xml_result.html");
LoadOptions loadOptions = new LoadOptions(FileType.Excel2003XML);

Why: Specifying the document type ensures accurate parsing and rendering.

Step 2: Set Up HTML View Options

using (Viewer viewer = new Viewer("YOUR_DOCUMENT_DIRECTORY/SAMPLE_XML_SPREADSHEETML\