I, too would like means to access MS ppt slideshows, etc.
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The free MS powerpoint viewer was evidently discontinued as of 2018-04....
there may be an option-
https://support.office.com/en-us/articl ... 5bd9b231a6 PowerPoint Online is a free alternative that provide some of the same benefits of PowerPoint Viewer and can display some newer features (such as the Morph feature and animations added to PowerPoint after version 2010).
If you have a Microsoft account (hotmail.com, outlook.com, live.com, msn.com) or an Office 365 work or school account, you can view and edit a presentation for free in a web browser by saving the file to OneDrive or Dropbox and using PowerPoint Online to open it.