How to Convert an Excel 2007 File to Excel 2003

1. Open the Microsoft Excel 2007 file you want to convert; you can do this by clicking the Microsoft Office button in the upper left-hand corner (it looks like a circle with the Microsoft Office logo on the inside) and then 'Open.' From the pop-up window, select the location of your Excel 2007 file. You can recognize 2007 files because they have a file extension of XLSX.
2. Click on the Microsoft Office button again; this time, select the right-facing arrow next to the 'Save As' option. A list of possible formats will appear; from this list, choose 'Excel 97-2003.'
3. Verify that the name of the file is correct; if you wish to change it, simply highlight the title, press 'Delete' on your keyboard and then type in the new name. Also make sure that file extension now reads XLS. Click 'Save.' The file should now be stored on your hard drive as a Microsoft Excel 2003 file.