FileInfo.com


.CMD File Extension


File Type Windows Command File
File Format File
Common? No
File Description Batch file that contains a series of commands executed in order; introduced with Windows NT, but can be run by DOS or Windows NT systems; similar to a .BAT file, but is run by CMD.EXE instead of COMMAND.COM.
Program(s) that open cmd files Mac: Parallels Desktop with Windows installed
Windows: Runs itself when opened or when executed via command prompt

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/cmd