How to fix an error when opening a presentation on a mobile phone?

Question

Mobile devices

and on one phone there is an error
and on the other - no

, the file writes
the pptx permission is damaged

, what could be the error?

Answer 1

The error may be in the OS version of the phone - and, accordingly, the version of the application. Try another application - there are a lot of them in the market.

Answer 2

Or a broken file, not downloaded
Or an old version of PowerPoint on the phone