If you can’t edit your Excel 2003 workbook, it might be set as read only. Follow the steps below to make your workbook editable.
- Make sure that the file is not open in Excel.
- On the Windows Start menu, point to Programs, point to Accessories, and then click Windows Explorer.
- In the Exploring window, open the drive or folder that contains the file.
- Click the file name.
- On the File menu, click Properties.
- Click the General tab.
- Clear the Read-only check box.