Show me how to create drop down menus in Microsoft Excel 2007

1. Open Microsoft Excel 2007
2. Click the "Data" tab
3. On the "Data Tools" section, click the "Data Validation" button
4. On the "Data Validation" window on the "Settings" tab, choose "List" from the "Allow:" drop-down menu
5. In the "Source" field, type a list of values separated by commas
6. Click the "OK" button

Alternate method:

1. Open Microsoft Excel 2007
2. Click the "Data" tab
3. On the "Data Tools" section, click the "Data Validation" button
4. On the "Data Validation" window on the "Settings" tab, choose "List" from the "Allow:" drop-down menu
5. To the immediate right of the "Source" field, click the cell selection button (it looks like a miniature spreadsheet with a red arrow pointing to the top-left corner)
6. Select the cells to be used as values for the drop-down menu
7. Click the red X in the upper-right corner of the "Data Validation" window
8. Click "OK"