Fit your data to the column width using the Wrap Text option.
- select a cell, a range of cells or the whole worksheet,
- open the Cell settings panel by
- tapping the
icon at the top toolbar, or
- tapping the More option in the pop-up menu and choosing the Cell menu item,
- swipe up to see more options and tap the Text Format option.
- swipe up to see the Wrap Text switcher and turn it on.
- close the cell settings panel by tapping the arrow on the right.
Note: if you change the column width, data wrapping adjusts automatically.
You can also select a cell/cell range, tap the More option from the pop-up menu that appears and then select the Wrap menu item. When data wrapping is enabled, the Unwrap option becomes available in this menu.