From within Excel 2007, click the "Open" button on the toolbar. Browse to the folder containing the ZIP file. Click the drop-down menu next to "Files of Type" and select "All Files (.)." ...

You could enter everything but the city and state in excel, then import it all into access and run a query against a zip code/city/state database (which you'd have to buy, they can be had for ...

I have a non-specific data column in an Excel 2007 spreadsheet. The data in one column is zip codes in the form of both zip (5 digit, 00000) and zip+4 (10 digit, 00000-0000) codes.