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Office Open XML Converter allows you to convert Open XML files that were created in Office 2008 for Mac or Office 2007 for Windows so that you can open, edit, and save them in earlier versions of Office for Mac. Open XML Converter can convert Word documents, Excel workbooks, and PowerPoint presentations that are in the Open XML Format so that you can open and edit the files in Office 2004 for Mac and Office v. X for Mac. You can choose to convert and open one file, or convert a large number of files.

What's New

Version 1.2.1:
  • This update contains improvements to security and stability. It includes fixes for vulnerabilities that an attacker can use to overwrite the contents of your computer's memory with malicious code.


  • Mac OS X 10.4.9 or later
  • One of the following: Office 2004 11.4.0 or later; Office v. X 10.1.9 or later

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Office Open XML File Format Converter User Discussion

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Sebwin Member IconReview+0

Used to work to my satisfaction on my old system. Now on new hardware with 10.8 conversion of DOCX files fails with log message:

*** NSTask: Task create for path '/Applications/Open XML Converter.app/Contents/SharedSupport/wordcvtr' failed: 22, "Invalid argument".

Sad :(

Reply0 replies
Version 1.2.1
Frankeed Member IconReview+66

I've downloaded and installed this multiple times. Each time it claims to have installed successfully, but when I run software update in Word, it shows up again, ready to be installed. I even used the special account I created to get Word to install an update a few updates ago, but no luck.

You'd think Microsoft would be able to create an installer that actually installs the software by now.

Reply0 replies
Version 1.2.1
Stonetownmike Member IconComment+12

My old version of this converter takes only 4 MB of drive space. This version is a 45.1 MB download. Dunno what else is in there, but I don't plan to find out.

Reply1 reply
Version 1.1.9

The converter app itself is small but there are numerous support files installed in /Library/Application Support that do all the heavy lifting. I'm willing to bet your old version has the same files in there, too.

Frankns Member IconComment+33

Curious ...

The latest version requires that Safari be shut down before installing the update. Wondering why that would be necessary.

As I write this comment, with the installer in the background, the "You must close Safari ..." box has begun popping up in front of Safari repeatedly.

Taking a pass for now ...

Reply3 replies
Version 1.1.7

I believe the installer is asking for Safari to be quit because of the OfficeLive Internet Plug-In. I don't know if this is part of Microsoft Office 2004 or just 2008, you can open your plug-ins folder to check, but even if it isn't there the requirement to quit Safari was just an option the Office team checked when they built the installer, don't worry about it.


FWIW - This cropped up with the new Office 2011 install. I suppose it could be an officelive or sharepoint plugin. Just hadn't seen it before.


It may also be the Silverlight plugin.

Harv Member IconReview+340

Worked great me.

MS had a bug in the previous version. That said they would get on it and post a fix in the near future. And they did. Two weeks to publish a fix is not a record, but better than many and what I expected.

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Version 1.1.1
Goof-Off Member IconComment+7

I am not going to review it, because I don't intend to download it. I do have Microsoft Office 2004 for the Mac, but with Open Office and Neo Office which are both free and will read anything Microsoft can produce, why would anyone even want to bother with anything from Microsoft?

Reply0 replies
Version 1.1
lutra Member IconComment+3

I had the same experience reported by another- the 1.0.3 installer installs a program that calls itself 1.0.2. I had the same infinite auto-updater loop, too. Get Info reports that both files have an identical number of bytes- "Size: 19.1 MB on disk (18,029,228 bytes)". That's further proof that the new installer installs the previous version.

Reply0 replies
Version 1.0.3
virtualruffy Member IconComment+211

What typical microshaft crap! The previous versions typically wouldn't open any office 2007 documents at all -but neo office would. Now this version 1.0.3 installs... 1.0.2! I've downloaded it 3x and all claim to install 1.0.3 but the get info shows 1.0.2 w/2007 copyright. After install it auto activates the crappy ms auto updater which... offers 1.0.3 as a download! Say yes, download it and it goes into a never ending loop of download, install, offer to upgrade, download, install... Pathetic!

Reply2 replies
Version 1.0.3

I share the very same exasperating experience. Even the date on the updater is wrong 9/9/09! What were these guys smoking when they posted this update.


come on, isn't it kind of sweet that a major company is making one tiny little mistake. they are humans, who might be smoking I don't know what. let's be nice and let them know that we are happy that they post their updates here. let's give them a break. they are very busy trying to lay an egg in front of their broken window pane.

kobalt Member IconComment+464

The usual M$ bloatware. Check out docXConverter (http://www.macupdate.com/info.php/id/23537/docxconverter)which, although not free and perhaps overpriced for some of us here, is a tenth the size and will save files in RTF that *can* be read by TextEdit and the like.

Reply0 replies
Version 1.0.2
Ilgaz Member IconComment+522

Requires MS Office. Ever seen a worse abuse of "Open"?

Reply0 replies
Version 1.0.2
There are no Ratings for this App yet.
> 3 5


Current Version (1.x)


Downloads 51,789
Version Downloads 18,084
License Free
Date 14 Sep 2011
Platform OS X / PPC 32 / Intel 32
Price Free
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