How to set password to Microsoft Office 2007 files ?

How to set password to Microsoft Office 2007 files ?

Keep your  Microsoft files safe and secure. Set password to Microsoft Office files (.doc ,.ppt, etc) to make  safe and secure.

-First open  any Microsoft office's component such as Word, Powerpoint, Excel etc.   

-Click on Office button  

-Click on Prepare

                                            

-Then new window opens . There click  on  'Encrypt document'

 -Enter the desired password in the 'Encrypt document' window. and click Ok.

  -New window appears asking for confirm the password . Then click OK. 

   Password is set on the file. And whenever we open the file it will ask for the password first.