There are some reasons you may want to disable Word Wrap.
This will completely block the Word Wrapping feature.
hit View in the top bar, then untick Word Wrap.
The default setting of Automatic is used to allow dynamic wrapping as you change the size of the window.
Tip: These prefs, only apply when the main Word Wrap setting is enabled.
tap on View in the top bar, then click Word Wrap Column and select a column width.