1.Access Joomla in the administrator section
2.Click the Content menu , Select Article
3.Click New
4.Enter article title at Title.
5.Click Table, select the desired table size.
6.Click to add the right column.
7.Click to delete rows.
8.Click to delete a column.
9.Click to add a column.
10.Click to delete tables.
11.Click on the Table Properties to set the table.
12.Press Ok
13.Click the Table Properties, select Advanced.
14.Set Style Press Ok.