Password protected your Microsoft Word 2010 and EXCEL document

In Microsoft Word and Excel, there is a feature to encrypt your document and set password protected.
In  Microsoft Word 2010 and EXCEL document:
1) Go to file tab and Click Info
2) Click "Protect Document", a menu pop-up, select  second "Encrypt with Password"
3) Type your password, after "Confirm Password", type the same password again.

Now your  Microsoft Word  and EXCEL document  are password protected.