Resizing the width:
The width of a table is the sum of the widths of the columns. So, to change the width of a table, you'll have to change the width of one or more columns. You may drag the right edge of any of the row-header columns, or the right edge of the first data-cell column. If you drag the right edge of the first data-cell column, all other data-cell columns are resized to match. Double-click the right edge of the first data-cell column to return to the default column width. The default column width is defined in Styles under: Table Styles > Table Metrics > Data Cell Default Width.

Resizing the height:
The height of a table is the sum of the row heights. You may change the height of any of the column-header rows by dragging on the bottom edge. To change the height of the data-cell rows, you'll need to modify cell height in styles. To do this, open the Styles pane and find Table Styles > Table Metrics > Data Cell Default Height. After changing the value, click the Refresh Output button toward the top of the Styles pane.