In a word processing program such as OpenOffice or Microsoft Word, you can create a line to separate blocks of text or to add simple decoration to a page by inserting a horizontal rule or by creating a square object with a solid bottom border. WordPad does not include the horizontal rule or shape features, but you can create an equivalent line with the underscore character.
Open a new or existing WordPad document.
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Press "Enter" to create a new line where you want the line to appear.
Hold down the "Shift" key and press the underscore ("_") key as many times as necessary to create a line across the screen.