cob is: Cob is an extension of COBOL source codes. These file formats can be opened by Cobol software.
Cobol: COmmon Business-Oriented Language, it is one of the oldest programming language that known. Generally it is used with business, management and financial accounts.
COB file: It is a code file that created by Cobol programming language. You may try to download an open coded cobol compiler to run these extensions.
Cob File format viewers or openers
Cob File related links.