File extension CLS (.CLS) information

Click to Run a Free Scan for ( .CLS ) Errors

Windows cannot open CLS files?

If Windows is unable to open file extension .CLS you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

The .CLS file extension identifies a Program Class file which forms a part of a Visual Basic Project. This file may contain object related data for source code authored by this development environment.. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair CLS file extension association errors.

Recommendations for file extension CLS users:

General information

Common errors/





File extension CLS scan

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You are currently viewing the detail page for CLS file extension. This page contains a detailed description of the CLS file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.
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File Extension Details