All about WCL Files

The WCL file type is primarily associated with WellCAD.

WCL	File extension: WCL
	File type:	composite log data file

What is a WCL file

WCL files mostly belong to WellCAD. Your WCL file can be one of several specialized data files.

WellCAD composite log file: This file uses a Microsoft Compound format to store composite log data. It can contain various data streams used in well logging. More details are available at Petrolog.

WinClone backup file: This file is created by WinClone as a backup image. It holds a copy of a Windows system partition for use on a Mac. See the product page at WinClone for further details.

CourseLab Course Structure file: This variant is an XML-based file used by CourseLab to store course structure data for e-learning modules. It is best opened with an XML editor or CourseLab software.

FilExt.com tip: Use the dedicated program for each file type to open or edit the file correctly.

How can I open a WCL file?

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

Online WCL Text Viewer

Choose your .wcl file to analyze

or drag and drop it here

Online File Viewer

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WCL file format:

Each file has a definite file format, that is, how the stored data is arranged in the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. So you need a detailed analysis of a file to find out the format and the associated program. Below is our analysis of the WCL files:

WCL is seldom used as a file extension and includes different formats for different programs. The two most common formats are as follows:

• 55% of all WCL files are based on the Microsoft Compound File format, known also as OLE2 Compound Document format or Composite Document File format. Compound document files work similarly to real file systems. They contain a number of independent data streams (like files in a file system) which are organized in a hierarchy of containers (like sub-directories in a file system). The first 8 bytes of the CFB format are D0CF11E0A1B11AE1 (which looks like "DOCFILE"). The contents of these files cannot be read by a human; only a computer program can interpret the data. The files are often between 610 KB and 110 MB in size. The file type was created 20 years ago but is still used today. These files are attributed to summary and sonic.
• 15% of all WCL files start with the bytes 00 50 5F 30 31 5F, which are crucial for this file format. These are binary files, so they do not contain words or text. The files are on average 4 GB in size and range from 2 GB to 4 GB. The files contain the following words: P_01_00. An example of a file name is user1.wcl or init.wcl.

The remaining 30% of all WCL files are files with no common format, often, for example, XML. Just click the "Choose your .wcl file to analyze" button on this page to find out what your WCL file is.