As the name says... you have a new fieldtype: Tables.
You can manually put content into the grid. The first row is the header. It has a different layout. Leave it blank if you don't use it.
One can also import a csv file into the table. First do the settings concerning the separator. Excel to CSV uses the semicolon.
Import. Here an example of a chessplayers tournament.
You don't need to define the number of rows and colums in advance. These are set automatically
The result. Use some CSS if you want.