<p>The <b>Protect Sheet</b> option allows you to protect the sheets and to control changes made by other users in a sheet as to prevent the unwanted changes to data and to restrict the editing abilities of other users. You can protect a sheet with or without a password. If you don’t use a password, anyone can unprotect the protected sheet.</p>
<p>To protect a sheet:</p>
<ol>
<li>
Go to the <b>Protection</b> tab, and click the <b>Protect Sheet</b> button on the top toolbar.
<p>or</p>
<p>Right-click the sheet tab you want to protect, and select <b>Protect</b> from the list of options</p>
<pclass="note">The password cannot be restored if you lose or forget it. Please keep it in a safe place.</p>
</li>
<li>Check the boxes in the <b>Allow all users of this sheet to</b> list to select operations that users will be able to perform. The operations <b>Select locked cells</b> and <b>Select unlocked cells</b> are allowed by default.
<detailsclass="details-example">
<summary>Operations a user may be allowed to perform.</summary>
<ul>
<li>Select locked cells</li>
<li>Select unlocked cells</li>
<li>Format cells</li>
<li>Format columns</li>
<li>Format rows</li>
<li>Insert columns</li>
<li>Insert rows</li>
<li>Insert hyperlink</li>
<li>Delete columns</li>
<li>Delete rows</li>
<li>Sort</li>
<li>Use Autofilter</li>
<li>Use PivotTable and PivotChart</li>
<li>Edit objects</li>
<li>Edit scenarios</li>
</ul>
</details>
</li>
<li>click the <b>Protect</b> button to enable the protection. The <b>Protect Sheet</b> button on the top toolbar stays highlighted once the sheet is protected.