I had again forgotten passwords in Microsoft Office.
But this time in the Word.
A document security has been set, but the password has been forgotten over the years.
undertaken after a short search on Google I found the following solution.
-  new Word document open 
 - the menu under Insert -> Select File is the only document and paste
 - And you've got the document with all formatting, form fields, tables, and without protection In the new document.
 
Source: http://www.office-loesung.de/ftopic3928_0_0_asc.php