How to save a document in DOCX format C# and .NET

  1. Add SautinSoft.Document from Nuget.
  2. Load or Create a document.
  3. Save to a DOCX format.

  1. Save to a file:
    
                // The file format will be detected automatically from the file extension: ".docx".
                dc.Save(@"d:\Book.docx");
    

    To not rely on the file extension and guarantee that the file contents is really DOCX, you may specify DocxSaveOptions as 2nd parameter.

    
    dc.Save(@"d:\Book.docx", new DocxSaveOptions());
    

    In DocxSaveOptions you can also set various options which affects to the saving process.

    
                dc.Save(@"d:\Book.docx", new DocxSaveOptions()
                {
                    Format = DocxFormat.Docm,
                    Password = "123"
                });
    
  2. Save to a Stream:
                // Let's save our document to a MemoryStream.
                using (MemoryStream ms = new MemoryStream())
                {                
                    dc.Save(ms, new DocxSaveOptions());
                }
    
 

Complete code

using System.IO;
using SautinSoft.Document;

namespace Example
{
    class Program
    {
       
        static void Main(string[] args)
        {
            // Get your free 100-day key here:   
            // https://sautinsoft.com/start-for-free/

            SaveToDocxFile();
            SaveToDocxStream();
        }

        /// <summary>
        /// Creates a new document and saves it as DOCX file.
        /// </summary>
        /// <remarks>
        /// Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/save-document-as-docx-net-csharp-vb.php
        /// </remarks>
        static void SaveToDocxFile()
        {
            // Assume we already have a document 'dc'.
            DocumentCore dc = new DocumentCore();
            dc.Content.End.Insert("Hey from File!");

            string filePath = @"Result-file.docx";

            dc.Save(filePath, new DocxSaveOptions());
			
			// Important for Linux: Install MS Fonts
			// sudo apt install ttf-mscorefonts-installer -y

            // Open the result for demonstration purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(filePath) { UseShellExecute = true });

        }

        /// <summary>
        /// Creates a new document and saves it as DOCX using MemoryStream.
        /// </summary>
        /// <remarks>
        /// Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/save-document-as-docx-net-csharp-vb.php
        /// </remarks>
        static void SaveToDocxStream()
        {
            // There variables are necessary only for demonstration purposes.
            byte[] fileData = null;
            string filePath = @"Result-stream.docx";

            // Assume we already have a document 'dc'.
            DocumentCore dc = new DocumentCore();
            dc.Content.End.Insert("Hey from MemoryStream!");

            // Let's save our document to a MemoryStream.
            using (MemoryStream ms = new MemoryStream())
            {
                dc.Save(ms, new DocxSaveOptions());
                fileData = ms.ToArray();
            }
            File.WriteAllBytes(filePath, fileData);
			
			// Important for Linux: Install MS Fonts
			// sudo apt install ttf-mscorefonts-installer -y

            // Open the result for demonstration purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(filePath) { UseShellExecute = true });
        }
    }
}

Download

Imports System
Imports System.IO
Imports SautinSoft.Document

Module Sample
    Sub Main()
        SaveToDocxFile()
        SaveToDocxStream()
    End Sub
    ''' Get your free 100-day key here:   
    ''' https://sautinsoft.com/start-for-free/
    ''' <summary>
    ''' Creates a new document and saves it as DOCX file.
    ''' </summary>
    ''' <remarks>
    ''' Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/save-document-as-docx-net-csharp-vb.php
    ''' </remarks>
    Sub SaveToDocxFile()
        ' Assume we already have a document 'dc'.
        Dim dc As New DocumentCore()
        dc.Content.End.Insert("Hey from File!")

        Dim filePath As String = "Result-file.docx"

        dc.Save(filePath, New DocxSaveOptions())

        ' Open the result for demonstration purposes.
        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(filePath) With {.UseShellExecute = True})

    End Sub

    ''' <summary>
    ''' Creates a new document and saves it as DOCX using MemoryStream.
    ''' </summary>
    ''' <remarks>
    ''' Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/save-document-as-docx-net-csharp-vb.php
    ''' </remarks>
    Sub SaveToDocxStream()
        ' There variables are necessary only for demonstration purposes.
        Dim fileData() As Byte = Nothing
        Dim filePath As String = "Result-stream.docx"

        ' Assume we already have a document 'dc'.
        Dim dc As New DocumentCore()
        dc.Content.End.Insert("Hey from MemoryStream!")

        ' Let's save our document to a MemoryStream.
        Using ms As New MemoryStream()
            dc.Save(ms, New DocxSaveOptions())
            fileData = ms.ToArray()
        End Using
        File.WriteAllBytes(filePath, fileData)

        ' Open the result for demonstration purposes.
        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(filePath) With {.UseShellExecute = True})
    End Sub
End Module

Download


If you need a new code example or have a question: email us at support@sautinsoft.com or ask at Online Chat (right-bottom corner of this page) or use the Form below:



Questions and suggestions from you are always welcome!

We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.