Question

How to remove a virus from a file without deleting it?

Answer 1

If it's something like an executable (.exe) file that you suspect/know has a virus, then I've got bad news for you.

That virus was most likely intentionally hard coded in to the program, and then compiled in to the executable. You cannot reverse this.

Answer 2

Well if you got i Virus number 1, SHAME ON YOU,
2 if you opened the file DON'T Because i might spread more. if you did open it Check if there's something not normal. EXAMPLE: Like if the folder is nothing but games and you see an application Try deleting it. IF ALL FAILS TRY A VIRUS WIP by Ether Mcfee Virus or Avira (windows mac)

-Salem :3

Shame on you