Opening a CLE File

The CLE file type is primarily associated with Icon Lock-iT.

CLEFile Extension CLE
File extension: CLE
File type:  Locked File Indicator

What is a CLE file?

CLE files mostly belong to Icon Lock-iT by Moon Valley Software, Inc. The .CLE extension designates a file locked by Icon Lock-iT (French 'cle' meaning 'lock'). It is a hidden extension that changes the icon to a locked icon. The extension is attached to the existing file type prompting Windows to alter the icon in response.cIt is not a true file type, does nothing more than designate a locked icon as such.

How to open CLE files

You need a suitable software like Icon Lock-iT to open a CLE file. You need a suitable software like Icon Lock-iT from Moon Valley Software, Inc. to open a CLE file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CLE file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CLE file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CLE Text Viewer

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4 Steps to Open an Unknown .CLE File

CLE files can come from different programs and aren't universally openable.

  1. Identify the Source: If from a security workflow, it may be a Locked File Indicator by Moon Valley Software, Inc. for Icon Lock-iT. Otherwise, it might be a custom data log.
  2. Check the Header: Inspect the first bytes in a text editor or hex viewer:
    • Readable XML/JSON suggests a configuration file.
    • "PK" indicates a standard ZIP archive.
    • Binary data points to a proprietary locked format.
  3. Use the Original Software: The original program is usually required; try Icon Lock-iT or a text editor, but ask the sender if uncertain.
  4. Use this Webpage: Drag and drop the file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for CLE File Extension

Related files:

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: CleLocked
EXEFile: rundll32.exe %ProgramFiles%\MOONVA~1\ICONLO~1\filelock.dll,_DisplayLockedFileMessage@16 %L


a cle Locked File Indicator is a special file format by Moon Valley Software, Inc. and should only be edited and saved with the appropriate software.

How to solve problems with CLE files

  • Associate the CLE file extension with the correct application.
  • Update your software that should actually open locked file indicators. Because only the current version supports the latest CLE file format. Search, therefore, e.g. on the Moon Valley Software, Inc. manufacturer website after an available Icon Lock-iT update.
  • To make sure that your CLE file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .CLE file online - secure, fast, and no downloads needed.
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