Open the Excel workbook
Select the worksheet you want to protect
Go to the Review tab
Click Protect Sheet
Enter a password in the Password to unprotect sheet box
Click OK
Re-enter the password to confirm
Click OK
Save the workbook
Open the Excel workbook
Select the worksheet you want to protect
Go to the Review tab
Click Protect Sheet
Enter a password in the Password to unprotect sheet box
Click OK
Re-enter the password to confirm
Click OK
Save the workbook