Converting Base64 Encoded String(Generated from a File) to File using Java

package basics;

import java.io.FileOutputStream;
import java.util.Base64;
import java.util.Base64.Decoder;
public class EncodedStringToFile {

public static void main(String[] args) {
try{
String encodedString="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";
Decoder decoder = Base64.getMimeDecoder();
byte[] decodedBytes = decoder.decode(encodedString);
FileOutputStream fout=new FileOutputStream("e:\\TalendOut"+"_.csv");
fout.write(decodedBytes);  
        fout.close();
        System.out.println("Converted Encoded String to File");

}
catch (Exception e) {e.printStackTrace();  }
}


}


PS: Converted file into Base64 String using https://base64.guru/converter/encode/file