Help to add password pop up

[Gladys1200]

Hello! I know how to add a password but I want the "enter password" to pop up everytime I open the work book in order to make changes. How can I do this?

[#2]

@Gladys1200

Select File > Save As.

Click 'More Options' to display the traditional 'Save As' dialog.

Click the Tools drop-down to the left of the Save button.

Select 'General Options...'.

Enter a password in the 'Password to modify' box.

Click OK. You'll have to re-enter the password as confirmation.