Explanation: The various Protect Workbook options are as follows:
1.Mark as Final: This option is used to make the document read-only. When a spreadsheet is markedas final, various options such as typing, editing commands, and proofing marks are disabled orturned off and the spreadsheet becomes read-only. This command helps a user to communicate that heis sharinga completed version ofa spreadsheet.This command also preventsreviewersor readers from making inadvertent modifications to the spreadsheet.
2. Encrypt with Password: When a user selects the Encrypt with Password option, theEncrypt Document dialog box appears. In the Password box, it is required to specify a password.Microsoftis not able to retrieve lost or forgotten passwords, so it is necessary for a user to keep a listof passwords and corresponding file names in a safe place.
3.Protect Current Sheet: This option is used to select password protection and permit or prohibit
other users to select, format, insert, delete, sort, or edit areas of the spreadsheet. This option
protects the worksheet and locked cells.
4.Protect Workbook Structure: This option is used to select password protection and select options to prevent users from changing, moving, and deleting important data. This feature enables a user to protect the structure of the worksheet.
5. Restrict Permission by People: This option works on the basis of Window Rights Management torestrict permissions. A user is required to use a Windows Live ID or a Microsoft Windows account torestrict permissions. These permissions can be applied via a template that is used bythe organization in which the user is working. These permissions can also be added by clickingRestrict Access.
6.Add a Digital Signature: This option is used to add a visible or invisible digital signature. It
authenticatesdigitalinformationsuchasdocuments,e-mailmessages,andmacrosby
using computer cryptography. These signatures are created by specifying a signature or by using an image of a signature for establishing authenticity, integrity, and non-repudiation.