A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Hello, I'm Quinn and here to help!
If you haven't already please try the steps here in this article:
https://support.microsoft.com/office/error-can-t-read-file-or-presentation-cannot-be-opened-7f2f31e2-d4dd-4c1f-9e27-ba6fadf92d44
Make sure the file you're inserting from is a .pptx file, not an older .ppt or something else like .odp. PowerPoint sometimes chokes on older formats. If it's a .ppt, open it separately, do Save As > .pptx, then try inserting again. If not, try this:
- Open your main presentation
- In the top search bar, type Reuse Slides and select it
- Click Browse and select the file
- You can insert all slides at once, but if it fails, try inserting them one by one