Answer:
1.Choose Page Layout > Columns. At the bottom of the list, choose More Columns.
In the Columns dialog box, select the check box next to Line between.
2.Layout tab
To change the paper size for your whole document: On the Layout tab, in the Page Setup group, click Size . Select More Paper Sizes . In the Page Setup dialog box, choose a paper size and for Apply to , select Whole document .
3.Click the Page Layout tab on the Ribbon. Select the Orientation command, then choose either Portrait or Landscape from the drop-down menu.
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