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Hello, I have Outlook 2003 and was emailed a pptx attachment. When I double click it, it always asks to save instead of opening it. Docx files open fine. I have the Office 2007 compatability pack installed. If I save the pptx file to my desktop i can open it from there, but not if I double click the attachment. Thanks for your help.
This appears to be the result of a recent security update for Powerpoint. You can use the PPTX Repair Kit for resolving this issue or uninstall the update… http://www.pptx.repair/
Also You can use the information noted in the link below https://social.technet.microsoft.com/For…
