A standard, simple header has only one section, and you can't use the normal columns feature to add columns to a header. Instead, however, you can insert a built-in header that comes with three columns. This header contains three separate text fields, one for each column, which makes it easy for you to fill in each column.
Step 1
Open the document that you want to contain headers with columns.
Video of the Day
Step 2
Click the "Insert" tab on the Ribbon.
Step 3
Click the "Header" icon on the Ribbon. Click "Blank (Three Columns)" on the drop-down Header menu, under the heading Built-In.
Step 4
Click the first column, represented by the words "Type text" inside square brackets, then begin typing to add text. Repeat for the other two columns; simply click "Type text" and then type.
Step 5
Click "Close Header and Footer," on the Ribbon, after filling in each column.
Video of the Day