.COB File Extension

File Type:
COBOL Source Code File

Having trouble opening .cob extension? Don't panic! This page explains what cob files are as well as suggests programs you may use to open cob files. You can download these programs through this page.

What is a COB file?

Cob file extension has COBOL Source Code file type, which is associated with the "developer files" category.

These are source code files in the COmmon Business-Oriented Language. Despite the fact of being one of the oldest programming languages, it is still used by various business programs, accounting apps, and administration utilities. There are several variants of COBOL in use with the COBOL-68 being the original standard and the COBOL 2002 being the latest version of the language. For development process, you must be sure that you are using the compiler and text editor compatible with the COBOL’s version.

To learn how you can open the given file, read the information below.

cob file icon
File Type:
COBOL Source Code File
Developer Files

How to open COB file?

Double click the cob file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .cob extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the cob extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the cob file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open COB files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the cob file as well. Download Universal File Viewer for your OS.

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