From text: Sets the amount of space between the contents of a table cell and the inside edges of a table cell. Adding extra padding can prevent your tables, especially large ones, from looking dense and crowded.
Top: Sets spacing from top edge of cells.
Bottom: Sets spacing from bottom edge of cells.
Left: Sets spacing from left edge of cells.
Right: Sets spacing from right edge of cells.
Preview: Displays selected settings.
Note: You can specify top, bottom, left, and right padding in a variety of measurement types including inches (in) centimeters (cn), millimeters (mm), percentage (%), points (pt), pixels (px) or pica (pc). For example, to set the width at one inch, type in 1in, or to set the width at thirty percent, type in 30%.