There are a few ways to delete data files. One way is to use the Windows operating system’s “delete” command. Another way is to use the “cmd” command. The cmd command can be found on the Start menu. To delete a file, type the cmd command and then press ENTER. The cmd command will list all of the files that are currently in your computer’s memory. You can select one of these files by clicking on it and then pressing ENTER. The cmd command will then delete the file.