change the Orientation Landscape and Insert a Tooter In the lent section with the file name . Display the Print Preview , and then change the Settings to Fit All Columns on One Page ( NOTE : On a Mac on the Page Layout tab , change the Width to 1 page .) Save your workbook and then un group the sheets . Make the Trees sheet the active sheet , and then insert a new worksheet . Change the new sheet name to Summary and then widen columns A:D to 170 pixels . Move the Summary sheet SO that it is the first sheet in the workbook

Choosing the Margin
Adjusting the margins, the vacant space to the left and right, as well as above and below the document text, is one of the most common page layout alterations (including the header and footer). On all sides, the usual margins are 1 inch. Reduced margins allow more text to fit on each page (which is handy when printing a large document), but it can also make the output appear cluttered and uninviting. You get less text on each page when you increase the margins, but the extra whitespace can make the document look more appealing.

Step-by-step explanation

You can provide particular margin widths for the Top, Bottom, Left, and Right margins, as well as where the new margins should be applied: to the entire page or from the insertion point onward.

Select the Layout tab from the drop-down menu.
Click on the Margins tab.
Select Custom Margins from the dropdown menu. The Margins tab appears when Word opens the Document dialog box.
Set the top margin using the Top spin box.
Set the bottom margin using the Bottom spin box.
Set the left margin using the Left spin box.
To set the right margin, use the Right spin box.