You can use Groovy scripts to copy files in your file system.
Where to use
You can use this script anywhere in ReadyAPI.
Example
Groovy
//Import libraries for working with filesimport java.nio.file.Pathimport java.nio.file.Paths
import java.nio.file.Files
//Create objects for the copied file and the target filePath source =Paths.get("C:\\Users\\elle.stevenson\\Desktop\\test.xlsx")
Path target =Paths.get("C:\\Users\\elle.stevenson\\Desktop\\out\\copied.xlsx")
//Copy the fileFiles.copy(source, target)