Guest guest Posted July 30, 2011 Report Share Posted July 30, 2011 Hi, PPT is the extension for file that is created using MS Office - Powerpoint 97-2003. PPTX is the extension for the file created using MS Office - Powerpoint 2008. In the earlier version of MS Office 97-2003, all the application documents had extensions like - doc, xls, ppt. Now in MS Office 2008, all the application documents have extension like - docx, xlsx, pptx. If you have MS Office 2008, while saving a newly created file by default the file extension is pptx. To change this at the time of saving in the save box choose the " save type as " - " PowerPoint 97-2003 Presentation (.ppt) " and the file will be saved as ppt. To open a PPTX file you will need MS Office - PowerPoint 2008. Alternatively, there are lot of free softwares available on net which will convert your pptx file to ppt. In Google search for the following " convert file from pptx to ppt free " and you will find many free softwares. E.g.: http://www.convertfiles.com/convert/document/PPTX-to-PPT.html You can still save your files in the old PPT format if you like. The only catch is that PowerPoint 97-2003 and earlier may not be able to use some of the features you might have used in your PowerPoint 2008 file. Vijay Quote Link to comment Share on other sites More sharing options...
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