Hi Mike,
Thank you for posting your query in our community.
Based on your description, when you try to refresh the link in PowerPoint file, it will automatically open the linked file and then start refreshing.
I tested it on my side, however, I can refresh the link without opening the linked file. Here are my steps:
- Create a folder under a SharePoint document library, then upload/create PowerPoint files and Excel files in it.
- Then sync the files via OneDrive sync client to the local so that you can access these files directly from the File Explorer.
- Then open the PowerPoint file from the client.
- Go Insert > find the Object button under Text.
- Select Create from file, and click Browse to select the Excel file which was synced to the File Explorer. After selecting the file, you can see the Link is available, then you can check this option. Click OK.
- Since this file is stored in the SharePoint, then it will save the changes automatically. Then go File > Info > scroll down to find and click Edit Links to Files under Related Documents section.
- A window like below will pop up. Then you can select the linked file and click Update now.
If my steps are different from yours, could you please provide more detailed steps about how you create the link for me? So that we can test it on our side.
Best regards,
Jazlyn