I recently discovered a bug in PowerPoint 2011 for Mac. If you insert a movie file into a PowerPoint presentation and you’re using the older .ppt file format then the link to the movie break when you close the file.  I’ve confirmed that this problem occurs with .wmv and .mov movie files and I assume it occurs with any other type of movie file. I’ve had a couple of clients encounter this bug. I reported this problem to Microsoft but it hasn’t been fixed as of the time of this writing. There is an easy solution to this problem. Use PowerPoint 2011′s native .pptx file format instead of the older .ppt file format.

Here’s what I did to fix the problem.

Open the .ppt PowerPoint file.

Go to the File menu and select Save As

In the Format section, select PowerPoint Presentation (.pptx)

Click the Save button. This will convert the presentation from .ppt format to the newer .pptx format

Go to the slide where you’d like to place a movie.

Go to the Insert menu and select Movie and then Movie From File

Navigate to the folder on your Mac which contains the movie file you want to insert into your presentation.

Select the movie file and click the Insert button.

Go to the File menu and select Save. The movie has now been imported to your presentation and will be saved within your PowerPoint file. You can check the size of your PowerPoint .pptx file to see that it has grown significantly now that the movie is saved inside it. When I was figuring out what the problem was I noticed that the file size of the .ppt file didn’t grow after I inserted the movie and saved the file. This told me that it wasn’t working properly. I also knew that I’d seen this feature work in other PowerPoint 2011 presentations. I then realized that the difference was that some files were .ppt files while others were .pptx files. That’s when I realized that this insert movie feature failed to work whenever I used the .ppt file format.

Have you received a file whose name ends with .docx or .xlsx and been unable to open it on your Mac? These files were created by either Word 2007 and Excel 2007 for Windows or Word 2008 and Excel 2008 for Mac. Thus, one way to open these files is using Office 2008. If you owned this then you wouldn’t have questions about how to open these files and you wouldn’t be reading this article. Here’s information about two other ways to open .docx and .xlsx files.

Option 1 – Use Microsoft’s free OpenXML Converter. It requires you to have an updated copy of Office 2004 as well as Mac OS X 10.4.3 or higher. This option is the focus of this article. See below for details.

Option 2 – Use Apple’s Pages application. It is part of iWork. I believe both Pages ’07 or newer is required.

To determine which version of Mac OS X you’re using please go to the Apple menu and select About This Mac. The version will be listed in the window that appears.

Go to your Applications folder to see if you have Microsoft Office 2004 installed. Look for the Microsoft Auto Update application as well. Run this application repeatedly until it indicates that all updates have been installed.

Finally, download the OpenXML Converter using this link. When you’re viewing this page you need to select which language version you want. For example, click on the link named English (.dmg) if you want the English version of this converter. After the disk image (.dmg) is downloaded on your Mac, you’ll need to open the disk image and then run the installer package (.pkg) file. Once you’ve finished installing this converter simply double-click on a file whose name ends in .docx, .xlsx or .pptx and the OpenXML converter will automatically be invoked in the background and the file will open in Word.