wordpress hit counter
Converting macro-enabled document to macro-free document - OpenXML Developer - Blog - OpenXML Developer
Goodbye and Hello

OpenXmlDeveloper.org is Shutting Down

There is a time for all good things to come to an end, and the time has come to shut down OpenXmlDeveloper.org.

Screen-casts and blog posts: Content on OpenXmlDeveloper.org will be moving to EricWhite.com.

Forums: We are moving the forums to EricWhite.com and StackOverflow.com. Please do not post in the forums on OpenXmlDeveloper.org. Instead, please post in the forums at EricWhite.com or at StackOverflow.com.

Please see this blog post for more information about my plans moving forward.  Cheers, Eric

Converting macro-enabled document to macro-free document

Converting macro-enabled document to macro-free document

Rate This
  • Comments 12

Article by - Sheela E.N, Sonata Software Limited


Macro-enabled files (.docm) have the same file format as macro-free files (.docx), but contain additional parts that macro-free files do not. The Open XML format stores the various components of the document, the charts, graphics, macros, and other elements, separately in parts. Developers can programmatically determine if any macro-enabled code exists in a WordprocessingML document by inspecting the package file and can remove those parts, so that the code can cause no harm.


This article explains the process of extracting and removing macro enabled part from a document using Open XML SDK in C# project.


1.       Create a C# project; add a reference to openxml dll

a.       In the Add Reference dialog box, click the .NET tab.

b.       Scroll to the Microsoft.Office.DocumentFormat.OpenXml option, select it, and then click OK.


2.       Import the namespace to refer to the dll


using Microsoft.Office.DocumentFormat.OpenXml.Packaging;


3.       Declare a string variable which stores relationship namespace for vbaProject


const string relTypeVBA = "http://schemas.microsoft.com/office/2006/relationships/vbaProject";


4.       Open the document to get the main document part.


WordprocessingDocument wordDoc = WordprocessingDocument.Open(filename, true);

MainDocumentPart mainPart = wordDoc.MainDocumentPart;


5.       Iterate each part in the main document to get macro part


foreach (IdPartPair var in mainPart.Parts)


            if (var.OpenXmlPart.RelationshipType.ToString() == relTypeVBA)


                  OpenXmlPart macroPart = (OpenXmlPart)var.OpenXmlPart;






6.       Since the document is macro enabled, its content type is set to - "application/vnd.ms-word.document.macroEnabled.main+xml"


7.       After removing macro part from the main document, have a copy of the content of main document and remove the same.


XmlDocument mainpartdoc = new XmlDocument();   




8.       Create a main document and get the content of the part saved in step no 7


MainDocumentPart main = wordDoc.AddMainDocumentPart();

StreamWriter mainstream = new StreamWriter(main.GetStream(FileMode.Create, FileAccess.Write));



9.       Change the content type of the main document from macro enabled to macro free and close the handler





10.   Move the file to another location with .docx extension.(You can change the logic of this to suite your requirement)


string newfilename = @"c:\MacroFree.docx";

      File.Move(filename, newfilename);


This is a simple demo which demonstrates ease of use of Open XML SDK for removing macro from word document. The example demo is attached with the article as a zip file.
Attachment: RemoveMacroUsingSDK.zip
Page 1 of 1 (12 items)