File Extension Database

Open COM File

COM files are DOS executable files. The content of a COM file is encoded in binary format and, one of its main characteristics is that its content is limited to 64 Kb of code.

COM extension files are executable files, just like EXE files, except that they do not have metadata or headers or attachments.

This means that the content of a COM file generally consists of directives or natural commands used by built-in DOS resources to perform several operations.

As you may have guessed, these directives and commands are normally carried out through the Windows command line, however, grouping them in a COM file may be convenient for some users and programmers.

The contents of some COM files can be viewed and edited with Microsoft Notepad or any other text editing program.

Some computer virus creators take advantage of the similarity of the COM file extension to the internet domain term name. com, to carry out their attack, either through emails, as attachments, as files posted on the website itself.

Because they are executable, COM extension files do not have an associated program to be opened, other than DOS, however, if you want to edit a COM file, you must make use of any of the following text editors, considering that you must be careful with executable commands:

Typical COM application file locations:

%1 %*
"%1" %*

Frequently associated Windows objects:

comfile

How Can I Open COM File on Windows

We researched and learned that the best way to open COM file is to find a COM file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a COM file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open COM file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as COM file opener then try to search online for "COM viewer", "application to open COM file" or "open COM file" queries in the search engine you like.
Install the application you found and check if it can open COM file

How Can I Open COM File on Mac OS

We recommend to find a COM file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a COM file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with COM file.
If you know the Mac OS application which can work as COM file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open COM file in it.
If you don't know the application which can open COM file then try to search for "COM viewer", "application to open COM file" or "read COM file" queries in the online search engine you like.
Install the application you found and check if it can read COM file

How Can I Open COM File on Android

If you downloaded a COM file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded COM file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "COM".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "COM viewer", "COM file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open COM File on iPhone or iPad

To open COM File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the COM file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "COM". This way you can find apps which can open COM files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "COM viewer" or "COM file" online in your favorite search engine.