More than 12,000 local police departments were operating in the United States during 2013. A local police department is a general purpose law enforcement agency, other than a sheriffs office, that is operated by a unit of local government, such as a town, city, township, or county.
SaveAs :- Is used to save an already saved document or anything (which you want to save) with a new name. In simple words with Save you save something with SaveAs you create a copy of already saved thing with a new name obviously. I hope you understood the main basic difference. TC.
Re: Can I save as docx? As far as I know, this is not possible, but what would be the advantage anyway? All versions of Word and most of the other word processors can open the format 97/XP which is a kind of lingua franca for office documents. LibreOffice 4.2.3.3. on Ubuntu 14.04.