COBOL file format description

Many people share .cobol files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cobol file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cobol files.

1 filename extension(s) found in our database.

.cobol - Micro Focus COBOL Source Code

The COBOL development files are related to Visual COBOL. The COBOL file is a Micro Focus COBOL Source Code. Micro Focus COBOL is a fully functional, high performance, cross- platform COBOL development technology for Windows, .NET, UNIX and Linux.

Visual COBOL
Development files
- / -
Micro Focus COBOL Source Code related extensions:
Oxygen XML Editor XQuery Module
MSIL Assembler Input Data
ABB RobotStudio Library
MATLAB Compiled Program
Domain Model Definition
IntelliJ IDEA Workspace

Naturally, other applications may also use the .cobol file extension. Even harmful programs can create .cobol files. Be especially cautious with .cobol files coming from an unknown source!

Can't open a .cobol file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .cobol file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:


Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

QB - Text Analyzer Vocabulary Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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