Microsoft Excel is a program that you can use to enter, format and manipulate large amounts of data. There may be times when you want to enter several rows of data into a cell. However, while pressing the "Enter" key in a word-processing program may produce a new line, all that key does in Microsoft Excel is move you to the next cell down. In order to insert a hard return into a cell, you need a keyboard shortcut.
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Click on the cell where you would like to enter the return.
Press the "Alt" key and keep it held down.
Press the "Enter" key, making sure you are holding the "Alt" key down at the same time. Excel enters a return into the cell.