Protect Workbook
Encryption Workbook
Open the file protection password is required
Step: File -> Information -> Protect Workbook -> encrypted with a password
Encrypted effects:
Cancellation encryption when you can just re-encrypted password blank
Protect Sheet
Protect Sheet Structure
So that the sheet can not be added and deleted, such as the effect of
Step: File -> Information -> Protect Workbook -> Protect Sheet Structure
You can see right can not add deleted
Protect Sheet
Protect Sheet may restrict certain operations carried out
Step: File -> Information -> Protect Workbook -> Protect Sheet Structure
