Open XML Package Editor for Visual Studio

Microsoft Free

Visual Studio add-in that provides an easy way to parse and edit Open Packaging Conventions files, including Word, Excel. PowerPoint and Visio documents.

(14) Review
Visual Studio
2013, 2012, 2010
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Reviews (14)
Q and A (10)
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by Tim Mangan | January 01 2016

Excellent. I was able to easily create word formatted documents using this tool from VS2013.

Disappointing that it still isn't in the gallery for VS 2015, but at least the Q and A on this page has a Microsoft employee blog link.

by Maheshk [MSFT] | November 17 2015

For VS 2015 - get it from here

Let me try to check with this author to update this page with latest download..

by Bogac Guven | October 07 2015

VS 2015 version needed, please.

by Julie Terberg MVP | October 07 2015

Any plans to support VS 2015? Thanks!

by Thierry_S | October 30 2014

Thanks for updating the add-in! Now using in VS 2013 without any registry hack. Good tool!

by bsivanov | August 28 2014

by Srinivas Donavalli | October 24 2013

Really Nice. I have been used this tool since year for my VSTO applications development. It should have been good if you guys support latest version of Visual Studio.

by z1c0 | July 10 2012

by Dragan Radovac | May 11 2012

This is really cool. I had no idea that I could view Word Documents in this fashion. Great Job !!!

by HerbF | April 11 2012

Great job, this is a must when developing Word or Excel applications with VSTO.

by Barry Postma | October 26 2011

Excellent tool, does exactly what it says on the box.
Indeed, as Eric commented, make sure you close all instances of VS, otherwise (in my case) it'll generate a 'application has stopped responding' when you open an internal XML file.

Also, far more lightweight than the Open XML Productivity Power Tools, that has an advantage of being able to generate code, but you can't edit anything. Compliments!

by Dzmuh | February 15 2011

by Tom Underhill | June 24 2010

This is an awesome tool. Make sure that you are not running Visual Studio 2010 when you install it.

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  • Visual Studio 2015 support
    5 Posts | Last post June 29, 2016
    • Is there a visual studio 2015 version of this tool, i would like to uninstall visual studio 2013 but i cannot, if some things are not working. 
    • I'm actually working on getting this out right now but I'm afraid it takes some time to make it through the process of being a signed & approved download. If you're able to compile it yourself, the version on GitHub does already have the 2015 update!
    • Thanks Chris, Yes - indeed recompiling the code targeting 4.6 solved VS 2015 issue. 
      Get the uploaded output from here- 
    • Hi all, looks like the download Maheshk posted no longer works. However, I've found quite an easy way to edit the OpenXMLEditor.vsix so it will work in 2015. Rename OpenXMLEditor.vsix to, and edit the extension.vsixmanifest, and add 
            <VisualStudio Version="14.0">
      to the list of  SupportedProducts. Save, rename back to OpenXMLEditor.vsix and should work.
    • Thank you VB6isdafuture. Adding Visual Studio to the manifest worked like a charm to add it to Visual Studio 2015.
  • Open XML Package Editor for Visual Studio integration
    1 Posts | Last post November 13, 2014
    • Hi,
      Open XML Package Editor is a power full tool. I have some clarifications reagrding this Editor control.
      1. Shall we able to load html content also to this editor.
      2. How can we implement this editor in MVC application(we are using razor as view 
      Please advise as early as possible.
  • VS 2012 support
    15 Posts | Last post October 30, 2014
    • Hi, are there any plans to support VS 2012?
    • Good question - why no reply yet? This is an essential tool for Office development.
    • I am also interested to leverage this adding with VS 2012. Any word when the add-in will be available for VS 2012?
    • VS 2012 support?
    • Support for Visual 2012 please.........
    • VS 2012 support please. Will stay with 2010 until this is available for 2012.
    • Yes, a vs 2012 version would be lovely.
    • I do not understand this. Why write a great tool to assist the integration of the new Office format and then not support it????? Is there plans that mean that supporting Open XML would be a waste of time/money for MS? Come on MS. 2012 support please!
    • If no VS2012 version is planned then please let us know. People have been asking for nearly a year and there has been no response.
    • I would like to know when the VS 2012 version will be released or are there no plans to update this tool?
    • I would like to know when the VS 2013 version will be released...
    • Also looking for an update on the plans to release a VS2013 version?
    • I'll add another plea for VS 2012 (and 2013) support. Pretty please!  Perhaps put the tool on codeplex and allow the community to move it forward?
    • Hi all - my apologies for the time we've taken on this but, as above, I've just updated the binary to support VS2012 and 2013 and open-sourced the project. Link to GitHub repo is on main download page.
    • Thanks Chris. Much appreciated.
  • Does this tool work with Visual C# 2010 Express?
    3 Posts | Last post June 05, 2014
    • I've tried, but whenever I try to open a docx file, it just comes up in Word.  Everything on the "Open with..." menu (except Word) tells me "The file cannot be opened with the selected editor."
      Do I need a full-blown VS2010 Pro in order to use this?
    • I don't know who is responsible for this site, but it is useless. People have been asking if there will be a version for VS2012 and no one answers. That is pretty poor.
    • I'm afraid the Express editions do not support add-ins. As above, we've just updated this plugin to work with later VS versions (2012 and 2013).
  • VS 2013
    3 Posts | Last post June 05, 2014
    • Any support to VS 2013? If you think you cannot support it anymore, so please make it open source. Other will do it surely 
    • Apparently, the tool will work with VS 2012 and 2013, but you have to change some registry keys. Instructions here:
      and here:
      Registry files for 32bits and 64bits for VS 2012 (=11.0 in registry):
      Registry files for 64bits for VS 2013 (=12.0 in registry):
    • I've just published an updated VSIX which supports VS2012 and VS2013. We've also open-sourced the project (links to GitHub repo on main download page).
  • Mystery extension!
    1 Posts | Last post January 11, 2012
    • I too am intrigued by how this extension works.  Does not show up in Visual Studio add-ins.
  • Visual Studio extension technologies
    2 Posts | Last post May 17, 2011
    • I wonder which exactly VS extension technology was used to create this tool? I've checked both Add-In Manager and Extensions Manager in VS after I installed this tool and I don't see it in either location. 
      Thank you!
    • Well, I don't know the exact answer, but it shows up in the "Add or Remove Programs" applet of the Control Panel, so it's a full-blown app; I would guess interfacing via the VS SDK.  
  • Changes the .docx (Word) association in TFS
    1 Posts | Last post May 17, 2011
    • Nice product, but after installing it, when using TFS, when I double-clic (View command) a .docx file in source control, instead of it opening in Word, it opens in a package explorer window.  I've searched for a reasonable solution without success.   Note that the Windwos Explorer association is for .docx still MS Word.
      Hi Eric.
  • cannot open InfoPath 2010 .XSN file
    2 Posts | Last post March 14, 2011
    • I thought that a .XSN file was like a .DOCX file (i.e. cabinet/zipped XML), but when I try to open this type of file in VS 2010, InfoPath is launched. The desired behavior is to be able to see/edit the underlying XML just like with DOCX.
      1. Can I get this to work some other way?
      2. Do you plan to "fix" this?
      Thanks in advance.
    • Hi Roger,
      I don't believe that XSN files are Open Packaging Convention (OPC) files.
  • Make sure you are not running Visual Studio when you install
    3 Posts | Last post September 06, 2010
    • If Visual Studio 2010 is running when you install, it will not work properly until you exit / restart Visual Studio 2010.
    • I get the same issue of not being able to find the tool in Extension Manager.  I installed it succesfully with Visual Studio not running, but no sign of it in VS.
    • Just open the document (e.g. via File - Open).