To create a table in Adobe Illustrator, you have to follow the steps

► Run illustrator and open new window, now select any paper size and click on OK

► Create a shape with any dimension as you want a table from the tool pallet, for example, rectangle shape

► Now, select your rectangle form stage and go to Object menu, choose the path and then choose split into Grid

► Type the number in Column & Row as you wanted for table and set the number in Gutterbox as 0px. Now you have a table, and you can set any background colour, stroke colour,