All about CMD Files

The CMD file type is primarily associated with Command Prompt.

CMD	File extension: CMD
	File type:	script

What is a CMD file?

CMD files mostly belong to Command Prompt by Microsoft. A CMD file is a script containing a series of commands to be executed in a Windows environment using the built-in Command Prompt interpreter. CMD scripts are commonly called batch files (from BAT filename extension used on DOS) as they are mainly used for batch processing and task automation. The contents of a CMD file are saved as text. So, the file may be created and/or edited with a text/code editor such as Notepad. Another type of CMD file is a program created by dBASE database management system. Summit Central contacts manager saves its contacts database in a CMD file.

How to open a CMD file

You need a suitable software like Command Prompt to open a CMD file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CMD file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CMD file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CMD Text Viewer

Choose your .cmd file to view

or drag and drop it here

Online File Viewer

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How to extract texts from CMD files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from CMD file or capture a screenshot, you can use our free Online CMD File Viewer:

To do so, click the "Choose your .cmd file to view" button above.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert CMD files:

Command Prompt by Microsoft
See the previous paragraphs to learn more about the main application. CMD files are often referred to as Command Prompt executables because this type of file is primarily created or used by this software.
1st Reader
CP/M (script) by Digital Research
CP/M is a discontinued 16-bit disk operating system for microcomputers. Batch scripts used to dynamically execute commands in CP/M are saved in CMD files. This file format is classified as Executable.
dBASE II (program) by dBASE
dBase is a database development and management system for Windows operating system. A program created with dBase is saved in a CMD file. This file format is classified as Executable.
OS/2 (script) by IBM
OS/2 is a discontinued operating system jointly developed by IBM and Microsoft. Batch scripts for automating tasks on OS/2 are saved in CMD files. This file format is classified as Executable.
OS/2 (script) by IBM
OS/2 is an obsolete operating system for home and business PCs. REXX scripts used by OS/2 are saved in CMD files. This file format is classified as Executable.
PDP-10 (indirect command) by DEC
PDP-10 is a discontinued mainframe computer with a 36-bit word length instruction set. Its external command menu is saved in a CMD file. This file format is classified as Executable.
Summit Central (contact database) by MIE
Summit Central is a personal information management program for Windows users. Its contacts database is saved as a CMD file. This file format is classified as Database.

CMD file format:

To view or edit CMD files you need to know the file format, because it determines how the data in this file is stored. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our evaluation of the CMD files looks like this:

The file type with the extension 'CMD' includes different formats for different programs. But the following two file formats are common:

25% of all CMD files start with the magic bytes @echo off, which are always the first bytes of this file format. These files are plain text, which means they can be viewed with any text editor such as Windows Editor, Nano for Linux, and TextEdit for macOS. The files are often between 92 bytes and 4 KB in size. The file type was developed 20 years ago and is still in use today. Certain words are almost always found in the files, such as @echo off. Some examples of file names are hadoop-env.cmd. These files are often associated with creatingiso and install.
8% of all CMD files start with the bytes @ECHO crucial for this file format. These files are text files, so they contain words and text. The file size is in the range of 110 bytes to 1 KB. Certain words are almost always found in the files, such as @ECHO OFF and file.

All the rest of the CMD files (67%) have different formats, such as TITLE, The and Viewer. The category is assignment, images, view, setup, start, activation, activate, disable, windows, silent or patch. Drag & drop your file here to see the file format and a preview of your CMD file!

Technical Data for CMD File Extension

File classification:

Executable

Related files:

command, cns, bat, exe, cdm, link, txt, zip, md_, im1, im2, ini, dvm, dicomdir, cmbx, check, inf, inp, def, cab

Mime type:

text/plain, application/x-bat

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: cmdfile, FileType: Windows NT Command Script, AppName: %1
EXEFile: %1

ProgramID: cmdfile, FileType: Windows NT Command Script, AppName: Notepad

ProgramID: cmdfile
EXEFile: %1 %*

ProgramID: cmdfile
EXEFile: %ProgramFiles%\@Home veiligheid\AntiVirus\AVFileMon.exe %1 %*

ProgramID: Notepad++_file
EXEFile: %ProgramFiles%\Notepad++\notepad++.exe %1

Show all 5 listings To Top

a cmd script is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with CMD files

Associate the CMD file extension with the correct application.
Update your software that should actually open scripts. Because only the current version supports the latest CMD file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Command Prompt update.
To make sure that your CMD file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .CMD file online - secure, fast, and no downloads needed.