If you want to insert a large table into a slide, it’s a good idea to create it in Word or Excel and then copy it into your PowerPoint presentation. However, you can easily create a small table directly on the slide.
On the Insert tab, in a slide with a content box, click the Table button, and, in the Insert Table dialog box that appears, specify the number of rows and columns you need for your table. Click OK.
Use the tools on the Table Tools Layout tab to modify the table as you want.
On the Table Tools Design tab, select the items you want to include in the table.
Use the Shading, Borders, and Effects buttons to customize the table.
Drag the borders of the table if you need to resize it, and then drag it to the location you want.