Protect the document structure

To protect the document structure, follow these steps:

1. On the Protection tab, click ** Protect structure**.

2. On the Spreadsheet structure tab:

   • If necessary, set a password to remove protection from the document structure.
   • Click Protect structure.

3. Close the Manage protection pane in one of the following ways:

   • At the top of the pane, click .
   • On the Sidebar, click  Manage protection.