Automating XLTX to XLSX Conversion with GroupDocs.Conversion for .NET

Introduction

Are you looking to automate the conversion of Microsoft Excel template files from Open XML Template format (.xltx) to standard spreadsheet format (.xlsx)? This comprehensive guide demonstrates how to achieve this using the GroupDocs.Conversion library in .NET, improving your workflow efficiency and saving valuable time.

What You’ll Learn:

• Setting up GroupDocs.Conversion for .NET.
• Step-by-step code to convert an XLTX file to XLSX format.
• Performance optimization tips for efficient conversions.

Let’s start with the prerequisites required to follow this tutorial smoothly.

Prerequisites

Before you begin, ensure your development environment is ready. You’ll need:

• Libraries: GroupDocs.Conversion version 25.3.0
• Environment: A .NET project setup (preferably using Visual Studio)
• Knowledge: Basic understanding of C# and file handling in .NET

Setting Up GroupDocs.Conversion for .NET

To use GroupDocs.Conversion, you must first install the library in your .NET project.

Installation

Add GroupDocs.Conversion via NuGet Package Manager Console or using the .NET CLI:

NuGet Package Manager Console

Install-Package GroupDocs.Conversion -Version 25.3.0

.NET CLI

dotnet add package GroupDocs.Conversion --version 25.3.0

License Acquisition

You can start with a free trial to test the library’s capabilities. For long-term use, you may need to purchase a license or acquire a temporary one:

• Free Trial
• Temporary License
• Purchase License

Basic Initialization

Here’s how you can initialize and set up GroupDocs.Conversion in your C# application:

using System;
using GroupDocs.Conversion;

class Program
{
    static void Main()
    {
        // Initialize the converter
        var converter = new Converter("YOUR_DOCUMENT_DIRECTORY/sample.xltx");
        
        Console.WriteLine("Conversion setup complete.");
    }
}

Implementation Guide

In this section, we’ll walk through converting an XLTX file to XLSX format using GroupDocs.Conversion.

Convert XLTX to XLSX

This feature allows you to convert a Microsoft Excel Open XML Template (.xltx) file into the more commonly used .xlsx format. Follow these steps:

Step 1: Load the Source File

Load your source .xltx file using the Converter class.

using GroupDocs.Conversion;
using System.IO;

string sourceFilePath = Path.Combine("YOUR_DOCUMENT_DIRECTORY\