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I tried to download a .pptx from an email, but the downloaded file does not work. In the download folder the icon is a blank sheet rather than the Powerpoint icon, although it is described as a Powerpoint presentation and is the correct size. I tried several times with the same result. It downoads and works on a different computer. Powerpoint 365 is installed and working and will play existing ppt presentations.
That's more likely a problem with your email program, not with PowerPoint.
Probably the problem is not with powerpoint But as for the browser, especially if it is linked to a virus program The file is considered as a virus Or adblock is not allowed to download Try opening the message in the incognito browser if you are using chrome Or change your browser
rename the file and change extension(.pptx)
Hi @LUFC
Welcome to Q&A forum.
If you are using mail client, it is recommended to try the online mailbox and download these files for a test.
Please right-click on these .pptx file and select Properties from the menu, and take a screenshot of General tab.
I suggest you check whether there is Unblock on the General tab.
If yes, you could tick this box.
Please also check the the application of "Open With".
If it is not PowerPoint, you need to click "Change" to select correct application to open.
Besides, if you have any anti-virus software, please turn it off temporarily.
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Hi @LUFC ,
If you have a chance to be back, please check whether my information is helpful.
Try downloading from another browser and see what happens, good luck