I will like to take the back up all uploaded files on AWS S#

which FTP can I use 

 

Regards

Saurabh

You can use any S3 browser to connect and download a copy of the files, Filezilla Pro version supports S3 and works well for this. 

If you're looking for something free, I've used "Cloudberry Explorer for Amazon S3" in the past

WinSCP supports S3 these days, which is my regular FTP client on Windows.

And if you use a Mac, Transmit supports S3.