If you don't have PowerPoint installed on your computer, you can still open and view presentations by using PowerPoint for the web or PowerPoint on your mobile device.
If you have Windows 10 on your computer, you can install PowerPoint Mobile to view presentations.
Use PowerPoint in a web browser
If you have a Microsoft account (hotmail.com, outlook.com, live.com, msn.com) or a Microsoft 365 work or school account, you can view and edit a presentation for free in a web browser. Save the file to OneDrive or Dropbox and use PowerPoint for the web to open it.
If you don't already have a Microsoft account, you can create one for free.
Get PowerPoint for a smartphone or tablet
The free mobile versions of PowerPoint let you open presentations on your smartphone or tablet:
PowerPoint Viewer has been retired
PowerPoint Viewer was retired on April 30, 2018. It's no longer available for download.