MailMerge 2.4.0

.NET Core 2.0 This package targets .NET Core 2.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package MailMerge --version 2.4.0
                    


                    

                
NuGet\Install-Package MailMerge -Version 2.4.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="MailMerge" Version="2.4.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="MailMerge" Version="2.4.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="MailMerge" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add MailMerge --version 2.4.0
                    


                    

                
#r "nuget: MailMerge, 2.4.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#addin nuget:?package=MailMerge&version=2.4.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=MailMerge&version=2.4.0
                    


                            Install as a Cake Tool

MailMerge for docx Documents

MailMerge replaces simple and complex merge fields in WordProcessingML .docx files and helps you apply .Net's Xml & XPath tooling to Word documents.

Component Usage

For Streams:
var (outputStream, errors) = new MailMerger().Merge(inputStream, Dictionary);
For Files:
var (ok,errors) = new MailMerger().Merge(inputFileName, Dictionary, outputFileName);

Set the current DateTime for date merge fields on MailMerger.DateTime, e.g. new MailMerger{DateTime=...}

CommandLine Usage

Merge a docx file:

dotnet MailMerge.dll inputFile1 outputFile1 [inputFileN [...outputFileN]] [ key=value [...] ]
  • example:
dotnet MailMerge.dll input1.docx output1Bill.docx  FirstName=Bill  "LastName=O Reilly"

Show a document's Xml:

dotnet MailMerge.dll  --showxml file [fileN ...]

Component Extension Methods & Helpers

stream.AsWordprocessingDocument(isEditable)
stream.AsXPathDocOfWordprocessingMainDocument(isEditable)
stream.AsXElementOfWordprocessingMainDocument(isEditable)

stream.GetXmlDocumentOfWordprocessingMainDocument()
fileInfo.GetXElementOfWordprocessingMainDocument()
fileInfo.GetXmlDocumentOfWordprocessingMainDocument()

A NamespaceManager, NameTable & Uri which you need when creating an XmlDocument and/or XElements:

var xdoc = new XmlDocument(OoXmlNamespace.Manager.NameTable)
var xelement= mainDocumentPart.CreateElement("w", "t", OoXmlNamespace.WpML2006MainUri)

Settings

None really, but see https://github.com/chrisfcarroll/MailMerge/blob/master/MailMerge/appsettings.json for settable limits. For commandline --showxml usage in scripts, you'll want to set appsettings.json::Logging.LogLevel to Information or higher

Doesn't do

  • Anything except simple fields, complex fields, DATE, PRINTDATE & SAVEDATE fields
  • Date formatting codes except a b B d D M y & h m s
  • Style/Formatting codes except these Date/Time formats
  • Multi-row datasources, just does 1 row at a time

Gotchas

  • Interprets .Net DateTime formatting codes that aren't in the WordProcessingML spec.

NuGet

https://www.nuget.org/packages/MailMerge/

How do I create a Word document with merge fields without attaching a datasource?

https://www.cafe-encounter.net/p2247/add-merge-fields-to-a-word-document-before-adding-a-datasource

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 is compatible.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2.6.0 748 5/24/2025
2.6.0-preview 148 5/22/2025
2.5.1 88,963 6/9/2023
2.5.0 215 6/9/2023
2.4.0 98,628 11/24/2020
2.3.0 746 7/20/2020
2.2.1 1,500 6/9/2019
2.2.0 1,388 11/24/2018
2.1.0 1,528 3/31/2018
2.0.0 1,424 3/23/2018
1.0.1 1,338 2/27/2018

2.4.0 OoXml Spec requires all fields to be treated CaseInsensitively
     2.3.0 Merges multi-line (\n or \n\r) input fields into a single <w:r>
           Breaking Change: Moved namespace MailMerge.Helpers -> MailMerge
     2.2.1 Should not require the existence of appsettings.json
     2.2.0 Handle more variations of w:instrText sequence.
     2.1.0 Added support for Complex Field Character sequences.
     2.0.0 Renamed component MailMerge.MailMerge to MailMerge.MailMerger