Changing the appearance of columns

Changing column width
Changing column style
Changing the appearance of column text
Changing the appearance of column headings
Changing the appearance of column data
Changing data appearance in the Task Name column
Changing data appearance in the Duration column
Changing data appearance in the Start Date column
Changing data appearance in the End Date column
Changing data appearance in the Task Notes column
Changing data appearance in the Resources column
Changing units in the Timeline column