WORKINGDIR "c:\download\destination\folder"
FTPLOGON "RemoteSite"
IFERROR RETURN
SET new_extension = %date + ".txt"
;; only process files matching this pattern: *.txt
:start_of_loop 
FTPGETFILE "*.txt"   
IFERROR RETURN $ERROR_SUCCESS
SETREPLACE FileName = %sitefile ".txt" new_extension
;; recombine but insert date
RCVFILE %sitefile /as FileName
IFERROR RETURN
GOTO start_of_loop