How do I restore code that is already uploaded in an arduino

I have an Arduino nano, and I have some pre-uploaded code into it. Now I lost the file for this code, and I just want to know if there is any way to bring back that code from an Arduino.


You may be able to extract the binary from the chip and then convert it to assembly, but you will not be able to recover the source code.

Oh ok, thanks for the quick response.