CLS File Extension - Open .CLS files

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Common File Extensions

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.CLS File Extension

TIP: Run a free scan for .CLS file extension errors.

File Type

Program Class File

Popularity

Average

Category

Developer Files

File Description

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.

Program(s) that open cls files

Windows

Microsoft Visual Basic or Visual Studio .NET