C# Program to make a copy of an existing file

Use File.Copy method to make copy of an existing file.

Add the path of the file you want to copy.

String myPath = @"D:\one.txt";

Now copy the above file to the following file −

String myPath = @"D:\one.txt";

Use the File.Copy method with both the source and destination file.

File.Copy(myPath,newpath);

Example

using System; using System.IO; public class Program {    public static void Main() {       String myPath = @"D:\one.txt";       // the file will get copied here       String newpath = @"D:\two.txt";       // copying file       File.Copy(myPath,newpath);    } }