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File Name Extension in Microsoft PowerPoint 2007

Posted by Chris On December 31, 2011 ADD COMMENTS

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In this article we will take a look at the different File name extension with  which PowerPoint documents can be created. There are 26 different formats in which the Microsoft PowerPoint 2007 files can be saved and created.
The  Microsoft Office 2007 system introduced a new file format based on XML called Open XML Formats and it applies to Microsoft Office Word 2007, Microsoft Office Excel 2007, and Microsoft Office PowerPoint 2007. This article describes what the new file name extension are, how you can share the 2007 Office release files with people using earlier versions of Office, and you can learn about the benefits.


What are the new File name extension ?

Documents, templates, worksheets, and presentations that you create in the 2007 Office release are saved with new File name extension with an x or m.  For example, when you save a document in PowerPoint, the file now uses the .pptx extension, instead of the .ppt as file name extension.
The x signifies an XML file with no macros.
The m signifies an XML file that does contain macros.


Can different versions of Office share the same files?

The 2007 Office release includes both compatibility checkers and file converters to ease file-sharing between different versions of Office.

1. Opening previous-version File name extension  in the 2007 Office release

Irrespective of New file name extension you can open and work on a file that was created in an earlier version of Office, and then save it in its original format. To prevent introduction of features in the 2007 Office release. The 2007 Office release uses a compatibility checker that reports those features to you and then you can remove them before continuing with the save.

2. Opening the 2007 Office release file name extension  in earlier versions of Office

You can open and edit a 2007 Office release with .pptx or .pptm file name extension  in an earlier version of Word, Excel, or PowerPoint by downloading the Microsoft office Compatibility pack on the computer with an earlier version of Office.

We will cover 6 basic and frequently used formats in this article.

1.    PowerPoint Presentation(pptx)

This is the default file name extension format for Microsoft Powerpoint 2007  files.  Microsoft introduced a new XML based file format called the Office Open XML (OOXML) document format. As promised by Microsoft the format will be open and the PowerPoint created in this format can be saved (or converted) in older versions of PowerPoint Office 2000, XP, and 2003. This format is not the same as the OpenDocument standard, also an XML-based standard being developed as a true open standard.
This is the default file name extension in which the any Microsoft Presentation 2007 slides are saved and created. These new files append an x to the end of the old Office file extensions, so PowerPoint files now have the .pptx extension.


2.    PowerPoint 97-2003 (ppt)

This is the original format of PowerPoint 97-2003.  Using Microsoft PowerPoint 2007 we can save Presentations in this format too.
A file with .ppt file name extension means that the file is an editable slideshow created with Microsoft PowerPoint 2003.


3.    PowerPoint Macro-Enabled Presentation – (pptm)

This file name extension introduced in PowerPoint 2007 allows users to create  Presentations which are Macro-enabled. Visual Basic macros are an implementation of Microsoft’s event-driven programming language Visual Basic 6, and associated integrated development environment (IDE), which is built into most Microsoft Office applications. Click here to refer to our earlier tutorial on how to write macro enabled programs. Unlike .pptx files, .pptm files execute embedded macros. Even if a .pptx file includes macros, PowerPoint will not allow users to run them. They must first be saved as a .pptm file, and then the macros may be executed.
.pptm files are based on the Open XML document format, which was introduced in Microsoft Office 2007. They may be opened in PowerPoint 2007 or later, or by previous versions of PowerPoint with the Open XML component installed.


4.    PowerPoint Show (ppsx)

This file format extension in PowerPoint 2007 always opens in slideshow view rather than in Normal view.
Slideshows created by Microsoft PowerPoint includes a finished collection of slides used for saving finalized presentations and for slide show playback.
Once saved, .ppsx files may only be viewed and cannot be edited.  Therefore, they are useful for sending finished presentations to users that do not own the commercial version of PowerPoint, since the .ppsx file can be viewed with the free PowerPoint Viewer program.
.ppsx files are saved in the Open XML format. They may be opened by PowerPoint 2007 or later, or by earlier versions of PowerPoint with the Open XML component installed.
Presentations will not be saved in this format if it has macros embedded.


5.    PowerPoint 97-2003 Show (pps)

PowerPoint slides stored in old slide show compatible format of PowerPoint 97-2003.
Slide show created with Microsoft PowerPoint 2003(or old version), saved as a completed slide show, which can be viewed by either PowerPoint or PowerPoint Viewer they are not editable like a .ppt file.


6.    PowerPoint Macro-Enabled Show (ppsm)

This file name extension introduced in PowerPoint 2007 allows users to create  Presentations which are Macro-enabled and save finalized presentations. A presentation saved with .ppsm file name extension means that the presentation contains a non-editable collection of slides, contains Macro Programs embedded in the slides. it can be  used for packaging view-only Slideshows.

The easiest way to open a PPSM file is to double-click on it and let your PC decide which default application should open the file. If no program opens the .ppsm file then you probably do not have the compatible version of Microsoft PowerPoint or Microsoft PowerPoint Viewer application installed in your computer.
.ppsm files, unlike .ppsx files, contain macros that are executed by PowerPoint. Even if a .ppsx file contains embedded macros, PowerPoint will not execute them until they are first saved as a .ppsm file.

PPSM files may be opened by PowerPoint 2007 or later, or by previous versions of PowerPoint that include Open XML document support.

What are the benefits of Open XML Formats?

All Microsoft office 2007 documents are created and saved in this new format. The Open XML Formats introduces several benefits — not only for developers and the solutions that they build, but also for individual people and organizations of all sizes:

1. Compact files

 Files are automatically compressed and can be up to 75 percent smaller in some cases. The Open XML Formats uses zip-compression technology to store documents, offering potential cost savings because it reduces the disk space required to store files, and decreases the bandwidth needed to send files via e-mail, over networks, and across the Internet. When you open a file, it is automatically unzipped. When you save a file, it is automatically zipped again. You do not have to install any special zip programs to open and close files in the 2007 Office release.

2. Improved damaged-file recovery

Files are structured in a modular fashion that keeps different data components in the file separate from each other. This allows files to be opened even if a component in the file (for example, a chart or table) is damaged or corrupt.

3. Better privacy and more control over personal information

Documents can be shared confidentially, because personally-identifiable and business-sensitive information, such as author names, comments, tracked changes, and file paths can be identified and removed by using Document Inspector. For details, see Remove hidden data and personal information from Office documents.

4. Better integration and interoperability of business data

Using Open XML Formats as the data interoperability framework for the 2007 Office release set of products means that documents, worksheets, presentations, and forms can be saved in an XML format available for anyone to use and to license, royalty free. Office also supports customer-defined XML schemas that enhance the existing Office document types. This means that customers can unlock information in existing systems and use it in familiar Office programs. Information that is created by Office programs can be used by other business applications. All you need to open and edit an Office file is a zip utility and an XML editor.

5. Easier detection of documents that contain macros

Files that are saved by using the default x suffix (such as .docx, .xlsx, and .pptx) cannot contain Visual Basic for Applications (VBA) macros and XLM macros. Only files with file-name extension that end in an m (such as .docm, .xlsm, and .pptm) can contain macros.


PowerPoint File conversion Tools

We have done some research and have provided few good PowerPoint conversion tools to different formats. Click on the link below to download the trial version of the Product.

From PresentationPro

From xilisoft.com

From moyeasoft.com

From WonderShare

Hope this article on the various File name extension available in Microsoft PowerPoint 2007 was useful for you.

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