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 Orsi,
Thank you for posting your query in Microsoft Office community.
I understand your concern and will help you with this issue.
Let’s refer to the following articles which discusses about recovering an Office file and check if it helps.
https://support.office.com/en-us/article/recover-an-Office-file-4bddecb7-bf4f-4aad-b1b3-dab1633b5bbf
Hope it helps. Reply with results and necessary information to help you further.
Thank you.