Cmd/.bat file question : how cann i get full user account info typed into a txt file?

basicly what i want is : i click on a bat file, and it makes a text document with the username and password of the current user, is this possible? and also that if i do this on multiple account it doesnt overwrrite it, so there 1 text file with like 5 account infos on it, or 5 text files with 1 account on each, is this possible? and can someone explain or give me the script please?