If you’re not familiar with Slicers they are covered in depth in our Expert Skills Books and E-books.
Slicers offer an extremely quick and convenient way to filter tables and pivot tables. They make it so easy to get quick summaries of data that it would be ideal if they could be used in PowerPoint presentations to present your data to an audience.
Slicers won’t work if they’re simply copied and pasted into a PowerPoint presentation, but it is possible to embed an Excel workbook into a PowerPoint presentation using the Insert > Text > Object option on the PowerPoint Ribbon.
Embedding Excel workbooks into other documents is explained in more depth in Expert Skills.
Embedded Excel workbooks can't be edited during a presentation
Even if you embed an Excel workbook into your PowerPoint presentation, you will only be able to use the Slicers while editing your presentation; they won’t work while you’re displaying the presentation in Slide Show view.
If you want to work with slicers during a presentation, I would suggest either switching between Excel and PowerPoint while you are presenting or using static screenshots of your data on several slides to simulate using the slicer.