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.
Look for files in your TEMP folder with dates/times that matched the time you shut your laptop.
If you find any close matches, rename them with a PPTX extension and see if PPT will open them.
If that doesn't work, you're probably out of luck and will have to re-create the presentation. Sorry ....