How to convert HTML to a Word DOCX Document using C# in .NET Framework

Converting between HTML and DOCX, while often necessary, is not always easy, especially when working with large volumes of files. That’s where today’s tutorial comes in; we will be accomplishing this conversion with a bare minimum of effort and time.

First, let’s run the following command in Package Manager’s console to install the API client that we need.

Install-Package Cloudmersive.APIClient.NET.DocumentAndDataConvert -Version 1.3.4

From here we simply call ConvertWebHtmlToDocx and feed it the HTML file in question.

using System;
using System.Diagnostics;
using Cloudmersive.APIClient.NET.DocumentAndDataConvert.Api;
using Cloudmersive.APIClient.NET.DocumentAndDataConvert.Client;
using Cloudmersive.APIClient.NET.DocumentAndDataConvert.Model;
namespace Example
{
    public class ConvertWebHtmlToDocxExample
    {
        public void main()
        {
            // Configure API key authorization: Apikey
            Configuration.Default.AddApiKey("Apikey", "YOUR_API_KEY");
            // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
            // Configuration.Default.AddApiKeyPrefix("Apikey", "Bearer");
var apiInstance = new ConvertWebApi();
            var inputRequest = new HtmlToOfficeRequest(); // HtmlToOfficeRequest |
try
            {
                // HTML to DOCX
                byte[] result = apiInstance.ConvertWebHtmlToDocx(inputRequest);
                Debug.WriteLine(result);
            }
            catch (Exception e)
            {
                Debug.Print("Exception when calling ConvertWebApi.ConvertWebHtmlToDocx: " + e.Message );
            }
        }
    }
}

That’s it. Seriously, it’s just that easy. Our document/conversion API also allows for a wide range of other useful similar functions. These include converting HTML and other file types to PDF, manipulating documents, and changing image formats.