All about CPL Files

The CPL file type is primarily associated with Windows.

CPL	File extension: CPL
	File type:	control panel item

What is a CPL file

CPL files mostly belong to Windows by Microsoft. A CPL file contains information about a control panel item on Windows operating system. Windows generates this file when a user opens a submenu (network, mouse, sound settings etc.) in the Control Panel application. Another type of CPL file contains concordance information used by TrialDirector trial presentation software for Windows. Another type of CPL file is a color palette used by CorelDRAW Graphics Suite for Windows. It contains color names and percentages for each palette.

How to open a CPL file

You need a suitable software like Windows to open a CPL 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 CPL file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CPL file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CPL Text Viewer

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Programs that open and convert CPL files:

Windows by Microsoft
See the previous paragraphs to learn more about the main application. CPL files are often referred to as Windows systems because this type of file is primarily created or used by this software.
Compel (presentation) by Asymetrix
Compel is a discontinued software for creating and rendering presentations on Windows desktop. It saves a presentation in a CPL file. This file format is classified as Page Layout.
CorelDraw Graphics Suite (color palette) by Corel
CorelDRAW Graphics Suite is a photo editing and graphics design software suite for Windows operating system. It saves a color palette in a CPL file. This file format is classified as Settings.
TrialDirector (concordance data) by IPRO
TrialDirector is a presentation software used in pre-trial, mediation, and litigation circles. It saves concordance data in a CPL file. This file format is classified as Data.

CPL file format:

To find out what program is needed to open CPL files, you need to determine the file format. The file format can be deduced from the file extension and the signature. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our evaluation of the CPL files is as follows:

CPL is rarely used as a file extension and includes different formats for the applicable programs. The two most popular formats are as follows:

60% of all CPL files are associated with Windows Control Panel Item files, which internally utilize the well-known EXE format. EXE is the abbreviation for executable and is the standard executable file format on Windows. The format can be identified by the letters "MZ" at the beginning. Executable files can also be used to distribute viruses and other types of malicious software (malware). They consist of unreadable binary data. CPL files are between 5 KB and 610 KB in size. The file type was developed 20 years ago and is still in use today. The files contain the following words: !This program cannot be run in DOS mode. A usual file name is sysdm.cpl or TimeDate.cpl. These files are attributed to appwiz, random and inetcpl.
15% of all CPL files use the same file format, which can be identified by the letters " PROGRAM " at the beginning. These files contain text and words, not binary data. The file size is in the range of 300 bytes to 4 KB. Certain words are almost always found in the files, such as PROGRAM, DEFINT i, DEFOBJ, Status, Ctrl, Check, Delay and Timer. These files can be linked to status, check and chiller.

All other CPL files (25%) have no consistent format, the following 3 formats can be found: Corel Color Palette. Often described as vinyl. You can get all the details of your CPL file by dragging it onto this page or by clicking the button "Choose your .cpl file to analyze" above.

Technical Data for CPL File Extension

File classification:

System

Related files:

deskthemepack, cpi, themepack, clp, theme, exe, contact, pcl, csv, dll, txt, pdf, xlsx, xml, zip, msi, etl, log

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: cplfile, FileType: Control Panel extension, AppName: rundll32

ProgramID: cplfile, FileType: Control Panel extension, AppName: Windows Shell Common Dll
EXEFile: shell32.dll

a cpl control panel item is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with CPL files

Associate the CPL file extension with the correct application.
Update your software that should actually open control panel items. Because only the current version supports the latest CPL file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Windows update.
To make sure that your CPL file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
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