How to mail merge Word document in ASP.NET Core?

Mail merge is a process of merging data from a data source to a Word template document. Syncfusion® Essential® DocIO is a .NET Word Library used to generate reports like invoices, payrolls, letters, etc., by performing mail merge faster in a batch process without Microsoft Word or interop dependencies. Using this library, you can mail merge Word documents in ASP.NET Core Linux.

Steps to Mail Merge Word Document in Linux:

1. Execute the following command in the Linux terminal to create a new ASP.NET Core Console project in Linux:
   

   dotnet new console

2. Install the Syncfusion.DocIO.Net.Core NuGet package as a reference to your ASP.NET Core project from NuGet.org by execute the following command.
   

   dotnet add package Syncfusion.DocIO.Net.Core -v 16.4.0.54 -s https://www.nuget.org/

3. Add the following namespaces in the Program file:

   using Syncfusion.DocIO;
   using Syncfusion.DocIO.DLS;
   using System.IO;
   

4. Add the following code snippet in the Program.cs file:

   // Create FileStream to open the Word template document
   FileStream fileStreamPath = new FileStream(@"Data/Letter Formatting.docx", FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
   using (WordDocument document = new WordDocument(fileStreamPath, FormatType.Docx))
   {
      string[] fieldNames = { "ContactName", "CompanyName", "Address", "City", "Country", "Phone" };
      string[] fieldValues = { "Nancy Davolio", "Syncfusion", "507 - 20th Ave. E.Apt. 2A", "Seattle, WA", "USA", "(206) 555-9857-x5467" };
    
      // Performs the mail merge
      document.MailMerge.Execute(fieldNames, fieldValues);
    
      // Create FileStream to save the Word file
      FileStream outputStream = new FileStream("Result.docx", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
    
      // Saves the Word file
      document.Save(outputStream, FormatType.Docx);
    
      // Close the Word file
      document.Close();
      outputStream.Flush();
      outputStream.Dispose();
   }
   

5. Execute the following command to restore the NuGet packages:
   

   dotnet restore

6. Execute the following command in the terminal to run the application ASP.NET Core application in Linux:
   

   dotnet run

A complete working example of mail merge Word documents in Linux can be downloaded from mail merge Word document.zip

By executing the program, you will get the Word document as follows: 

Take a moment to peruse the documentation, where you can find basic Word document processing options along with features like mail merge, merge and split documents, find and replace text in the Word document, and most importantly, PDF conversion with code examples.

Explore more about the rich set of Syncfusion® Word Framework features.

An online example to perform mail merge in a Word document.

See Also:

How to Mail Merge Word Document in ASP.NET

How to Mail Merge Word Document in ASP.NET

How to Mail Merge Word Document in ASP.NET MVC

How to Mail Merge Word Document in Xamarin

How to Mail Merge Word Document in Xamarin.Android

How to Mail Merge Word Document in Xamarin.iOS

Conclusion

I hope you enjoyed learning about how to mail merge Word documents in ASP.NET Core.

You can refer to our ASP.NET Core Word Library feature tour page to know about its other groundbreaking feature representations. You can also explore our ASP.NET Core Word Library example to understand how to present and manipulate data.

For current customers, you can check out our .NET Core components from the License and Downloads page. If you are new to Syncfusion®, you can try our 30-day free trial to check out our .NET Core Word Library and other .NET Core components.

If you have any queries or require clarifications, please let us know in the comments below. You can also contact us through our support forums, or feedback portal. We are always happy to assist you!