Create docx using Mail merge in C#

High-speed .NET library for merging document templates and user data into files of various formats

Our solution provides a powerful platform independent API. Use our Mail merge document API to develop high-level software for .NET and .NET Core platforms. This is a powerful software solution for merging templates in Word and PDF formats and data from custom data sources and further exporting the result to DOCX, PDF, HTML and other popular formats using C#.

Mail merge mustache in C#

Powerful .NET library to use mail merge operation with mustache template and user data.

This C# SDK allows you to use Mustache templates based on the Mustache syntax and execute mail merge operations on this logic-less template to fill the document with data from various data sources. You can export the result into the required document format: DOCX, PDF, HTML and other popular formats using C#.

Mail merge with logic-less templates using C#

Mustache is an alternative syntax for mail merge templates that consists of tags. To create a mustache template, use tags specified by the double braces as follows:

{{FirstName}}

In this case, you can find such tags inside the template and replace them with values determined by the key inside the tag. It is called logic-less templates because there are no if statements, else clauses, or for loops.

Mustache syntax is the only option that can be used with HTML or TXT templates that do not contain any fields. This means that with some template formats, such as Word templates, you can use both fields and mustache syntax, and with others, such as HTML or TXT, only mustache template syntax.

You can try our solution to perform mail merge operation with a mustache template in .NET. After running the code, export the mail merge result using C# to a convenient file format such as DOCX or PDF:

Execute a Mail merge operation using docx template in C#

Input file

Upload a Mail merge template

Run code

Output format

Select the target format from the list

dotnet add package Aspose.Words

Copy

using Aspose.Words;

var fields = new string[]
{
};
var values = new object[]
{
};

var doc = new Document("Input.docx");
doc.MailMerge.UseNonMergeFields = true;
doc.MailMerge.Execute(fields, values);
doc.Save("Output.docx");
            

					Run code
				

You may freely download this code or copy it in any applicable purpose

How to use Mail merge in docx files

Install Aspose.Words for .NET.
Add a library reference (import the library) to your C# project.
Create a docx merge template with merge fields.
Open the template file in C#.
Call the Execute() method, passing the merge fields and their values there.
Call the Save() method, passing an output filename with required extension.
Get the result of Mail merge operation as Word file.

C# library to use Mail merge in docx

There are three alternative options to install "Aspose.Words for .NET" onto your system. Please choose one that resembles your needs and follow the step-by-step instructions:

Install a NuGet Package. See Documentation
Install the library using Package Manager Console within Visual Studio IDE
Install the library manually using Windows Installer

System Requirements

Our product is fully cross-platform and supports all major .NET implementations:

.NET ≥ 5.0
.NET Core ≥ 2.0
.NET Standard ≥ 2.0
.NET Framework ≥ 3.5
MonoMac
MonoAndroid
Xamarin

As far as .NET code doesn't depend on the underlying hardware or operating system, but only on a Virtual Machine, you are free to develop any kind of software for Windows, macOS, Android, iOS and Linux. Just make sure you have installed the corresponding version of .NET Framework, .NET Core, Windows Azure, Mono or Xamarin.

We recommend using Microsoft Visual Studio, Xamarin, and MonoDevelop integrated development environments to create C#, F#, VB.NET applications.

Fore more details please refer to Product Documentation.

You can perform Mail merge operation for other file formats:

Mail merge DOCX

Mail merge WORD

Mail merge WORD-FROM-EXCEL