Encrypt with Password: Secure the entire workbook, requiring a password to even open the file. This prevents unauthorized access completely
Protect Sheet with Password: Lock specific worksheets, preventing users from editing, formatting, or deleting cells without a password
Protect Workbook Structure: Prevent others from adding, deleting, or renaming sheets within the Excel file. This maintains organizational integrity
Mark as Final: Indicate the file is read-only, discouraging further edits. While not password-protected, it's a useful deterrent
Restrict Editing (Windows Only): Use Information Rights Management (IRM) to control who can open, edit, print, or copy content. Requires a server setup