Create a table

Select the cells where you want to insert the table.

Go to Insert and select  Table or press ⌘+T. This shows you the selected range.

Check My table has headers if your table has headers, and then select OK. 

Select the cells where you want to insert the table.

Go to Insert and select  Table or press CTRL+L. This shows you the selected range.

Check My table has headers if your table has headers, and then select OK.