Drag the marker under Orientation counterclockwise, or enter a number between 0 and 90 in the Degrees field. You can rotate text up to 90 degrees clockwise or counterclockwise.

This tutorial explains how to delete a text vertically in a Word document or Excel spreadsheet without deleting all the text horizontally.

How to Change the Orientation of a Worksheet to Landscape in Microsoft Excel. By changing the orientation of a worksheet to Landscape mode, you're making the page wider than it is tall, so more ...