In the open slide, you have to first select the table. Then click on the contextual tab “Table Design” from the menu ribbon located at the top of the screen.
In the “Table Design” tab, you have to click on the downward arrow on the “Table Styles” gallery to expand it. Then select your preferred table style for the selected table.
Step-1: Copy a table with the preferred table style applied to it. Click on the table to first select it. Then “Right Click” on the table and select the “Copy” option from the right-click menu.
Then “Right Click” on the slide and click on the “Keep Source Formatting” option under “Paste Options” in the right-click menu.
Step-3: Add contents to the table
Finally, all you have to do is add new content to the pasted table. This will create a new table with the same table style.
First select the table. Then click on the “Table Design” tab. Now all you have to do is use the options in the “Draw Borders” group to customize the table borders.