.CLS File Extension

File written in LaTeX, a document markup language often used for typesetting academic papers; stores a class with a predefined typeset configuration that can be imported into a .TEX document; used for storing templates for articles, forms, and other types of documents.

Class files help users generate documents with the same style and structure. For example, a scientific journal publisher may distribute a CLS file to submitting authors so that all articles appear the same in the publication.

LaTeX software installations typically include some CLS files that can be used as document templates.

Contains "objects" referenced by the source code of one or more programs in a software programming project; may define functions, variables, or various data types.

Saved within a Visual Basic Project (.VBP file), but often saved as a separate file during program development. Compiled into the program during the software compilation process.