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Show File Extensions on All Files on Your Computer

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About PowerPoint File Extensions
Show file extensions for all files

Show file extensions for all files

© Wendy Russell

PowerPoint File Extensions

The file extension for a PowerPoint show is .ppsx (versions 2007 or 2010) or .pps (versions 2003 and earlier). The file extension for a PowerPoint presentation is .pptx (versions 2007 and 2010) or .ppt (versions 2003 and earlier). This file extension tells PowerPoint whether the file is ready for prime time (a PowerPoint show) or is still in the creation stage (a PowerPoint presentation).

File Extensions Not Showing

When you look at a list of file names in a window, (whether they are PowerPoint files or any other types of files) and the file extensions are not shown, the feature is currently turned off. This is the default setting (file extensions turned off) when you first install Windows on your computer.

To Turn File Extensions On

  • Windows 7
    1. From the Start Menu choose Control Panel.
    2. Click on the heading Appearance and Personalization.
    3. Click on Folder Options near the bottom of the topic list.
    4. Click on the View tab of the Folder Options dialog box.
    5. Remove the check mark beside the listing for "Hide extensions for known file types".
    6. Click OK.
  • Windows XP
    1. Open any window that will display a list of file names.
    2. Choose Tools > Folder Options...
    3. Select the View tab, in the Folder Options dialog box.
    4. Remove the check mark beside the listing for "Hide extensions for known file types".
    5. Click OK.
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