Mar 21 2018 07:55 AM
Apr 20 2018 05:59 PM
I have found the same thing, I have a folder in SharePoint that contains all my ppsx 'shows' that I direct staff to view. These have all now begun opening as PowerPoint files and then the viewer has to launch as a slideshow. This defeats the object of having the files saved as ppsx.
Can this function be put back please, it used to work well last year but for some reason it no longer functions this way.
Apr 22 2018 09:25 AM
Jan 28 2019 02:29 AM
I think the solution can be found here:
In short:
https://subdomain.sharepoint.com/personal/my_account_name/_layouts/15/WopiFrame.aspx?sourcedoc=powerpoint_item_guid&action=embedview&wdSlideId=slideId
Mar 10 2019 05:38 AM
hi, we are a year later and i want to know if u got any helpful replies? cause the problem still exist :(
Aug 31 2020 10:19 PM
The key change is replacing the action parameter with embedview so that animations can be displayed. The manual method is to click Start Slide Show when the PowerPoint file opens in Office Web App.
https://fyano.wordpress.com/2018/06/13/launch-powerpoint-files-into-slideshow-in-office-365/
Mar 07 2022 01:01 AM
I found that appending this to the end of the URL does the trick.
?sourcedoc=<guid>&action=embedview
Sep 13 2023 11:40 AM
Sep 20 2023 07:13 AM
This had me troubled because I was trying to open in Slide Show mode from Teams and SharePoint for the same reasons and after trying all the suggested methods, I was coming up short. Here's how I made it work:
Go to the document library in SharePoint
Click on the ellipsis next to the file name and select Preview
In Preview mode, select the ellipsis in the top menu and select embed and you will get something that looks like this:
<iframe src="https://name.sharepoint.com/sites/documentlocation/_layouts/15/embed.aspx?UniqueId=dccb8f9e-babc-40e..." width="640" height="360" frameborder="0" scrolling="no" allowfullscreen title="filename.ppsx"></iframe>
Copy this part of the embed code and insert as a link in your page or Teams channel:
Opens in SharePoint in slide show mode.
hope this helps!
Jan 05 2024 03:49 PM
@LizRizziThis is the ONLY solution that has worked for me! Thank you SOOOOO much!!
Feb 26 2024 03:47 AM
@LizRizzi - nice one, that hint has helped me. My particular case was to add a launch button on a SPO page - using Preview mode you can just copy/paste the URL from the launched tab too.