Xcopy is a command-line utility in Microsoft Windows that allows users to copy files and directories from one location to another. It is more powerful than the basic copy command, as it can handle entire directory trees and offers various options for copying attributes, such as file timestamps and permissions. This tool is particularly useful for backing up data or transferring large amounts of files efficiently. Users can specify parameters to include or exclude certain files, making it a flexible option for managing file transfers in both personal and professional settings.