Excel 2007 Password Protect Worksheet From Viewing. Protecting the workbook is the best option. The tutorial shows how to protect Excel sheet with or without passwords.
How to Password Protect Excel Files (Arthur Cain)
Worksheet protection is used to prevent your Excel data from unauthorized changing or editing, so, if you will find you won't be allowed to modify Just choose the second one "Remove Excel Worksheet Password", and next. Protecting worksheet elements should not be confused with workbook-level password security, which prevents users from opening a file at all. You need to protect the workbook's structure.
It is not recommended if you are not familiar.
Make sure the top check box (Protect Worksheet and Contents of Locked Cells) is selected.
3 Ways to Password Protect a Workbook/Sheet in Excel 2016-2007
How to Recover, Remove, & Unlock Password Protected Excel ...
Given below are the steps to protect your sheet. Hide the sheet, then password protect the workbook. This works to unlock a protected sheet that has been locked with a password, but it doesn't unlock a password protected file, which involves strong encryption.