OneDrive links to PowerPoint presentations cannot be opened on iPad

[MARK13]

I uploaded PowerPoint presentations to OneDrive and sent links to users. Editing and downloading are blocked. Everything works fine, except: iPad users complain that the PowerPoint presentations do not work on Safari. PowerPoint app is installed, but cannot open presentations. How can I fix this?

[#2]

@MARK13 

They should be able to go to PowerPoint > open > OneDrive and open the file.

[#3]

@Alireza Rahimifarid Thanks, I will try that.

[#4]

@Alireza Rahimifarid Again, thanks. Unfortunately, it does not work. The PowerPoint app won't open OneDrive links to presentations when editing and downloading are blocked.

Any other ideas? Is it possible to securely share PowerPoint presentations with iPad users (no editing or downloading)?