How to open COM files

Did your computer fail to open a COM file? We explain what COM files are and recommend software that we know can open or convert your files.

What is a COM file?

Contrary to popular belief, files with the .com extension have no relation to the .com top-level Internet domain names. Files that contain the .com file extension actually hold executable command files.

These COM files are executable files that contain commands that are used by a computer's operating system, very similar to the .exe files used by the DOS and Windows operating systems.

The .com file extension may also be used for Common Object Module files. The EICAR anti-virus software application also uses files with the .com file extension. In this case, the COM files contain anti-virus test files that are used by the software.