How to Protect a Workbook in Microsoft Excel 2003

1. Open the workbook that you wish to protect. You will need to first open a workbook before you can protect it. You can do this by scrolling to the “File” tab on the command bar and left-clicking on “Open.”
2. Open the workbook protect menu. To open the workbook protect menu, scroll to the “Tools” tab on the command bar and select “Protection.” Then scroll to “Protect Workbook” and left-click.
3. Set the workbook protect options. You can set two options by checking their boxes: structure (which will not allow the structure to be changed) and windows (which will not allow any modification windows to be opened). Check the boxes as desired.
4. Set the workbook protect password. Under the “Password” field you can enter the desired password, if you wish the workbook to be password protected.
5. Implement the changes. To implement the changes and protect your workbook, click on the “Okay” button.