Many times, you can manage with a table within PowerPoint instead of an actual Excel spreadsheet. This is especially true when you want your table content to have a consistent look and feel with the rest of your slide. However, tables are dumb — they cannot work with formulas or even do the most basic functions that Excel provides. So there may be times when you would want a real Excel spreadsheet within your slides rather than a table.
Learn how to insert an Excel spreadsheet in PowerPoint 2013 for Windows.

