Defined and Free row tables can be designed with many fields (columns), which causes a table field to be wider than the form. If this is the case, Expand the table. 

Defined Row

The screenshot below shows a defined row table field that is wider than the form. Note the scroll bar at the bottom of the table field. 

To expand the table, click Expand which will appear when you hover over the bottom left corner of a table. 

The table will expand and take as much space as possible. When the table is expanded the user can still enter data. 

Free Rows Table

A Free row table field functions similar to the Defined row table with the exception that you can add rows when the table is expanded. 

Form Display

On form display both the Defined row and Free row table field can be expanded to view the table data easier. Hover over the bottom left of the table and click Expand.