CDW File Extension

What is CDW file?

CDW is a CAD document file created by KOMPAS-3D, a 3D rendering and modeling software tool. CDW file stores 3D model project along with its coordinates, surface settings, object definitions, and documentation.

Usage of CDW files

CDW files are used for final rendering of 3D models, creating project documentation, design plans, and technical drawings. Also, CDW files are used for exporting model geometry for production.

Additional information

1. CDW is a proprietary CAD file format used by default by COMPAS-3D tool.
2. CDW files can be exported int other formats.

Programs which support CDW file extension

Programs that can handle CDW files are as follows. CDW files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Updated: 02/08/2020

How to open file with CDW extension?

Being unable to open files with CDW extension can be have various origins. Fortunately, most common problems with CDW files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Get the ASCON KOMPAS-3D Viewer

Problems with opening and working with CDW files are most probably having to do with no proper software compatible with CDW files being present on your machine. This one is an easy one. Select ASCON KOMPAS-3D Viewer or one of the recommended programs (for example, KOMPAS) and download it from appropriate source and install on your system. The full list of programs grouped by operating systems can be found above. The safest method of downloading ASCON KOMPAS-3D Viewer installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Check the version of ASCON KOMPAS-3D Viewer and update if needed

If you already have ASCON KOMPAS-3D Viewer installed on your systems and CDW files are still not opened properly, check if you have the latest version of the software. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. If you have an older version of ASCON KOMPAS-3D Viewer installed, it may not support CDW format. The most recent version of ASCON KOMPAS-3D Viewer is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Assign ASCON KOMPAS-3D Viewer to CDW files

After installing ASCON KOMPAS-3D Viewer (the most recent version) make sure that it is set as the default application to open CDW files. The next step should pose no problems. The procedure is straightforward and largely system-independent

Selecting the first-choice application in Windows

• Right-click the CDW file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where ASCON KOMPAS-3D Viewer is installed. Now all that is left is to confirm your choice by selecting Always use this app to open CDW files and clicking OK.

Selecting the first-choice application in Mac OS

• From the drop-down menu, accessed by clicking the file with CDW extension, select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select ASCON KOMPAS-3D Viewer and click Change for all...
• Finally, a This change will be applied to all files with CDW extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the CDW for errors

Should the problem still occur after following steps 1-3, check if the CDW file is valid. Being unable to access the file can be related to various issues.

1. Verify that the CDW in question is not infected with a computer virus

If the file is infected, the malware that resides in the CDW file hinders attempts to open it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. CDW file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the CDW file’s structure is intact

If the CDW file was sent to you by someone else, ask this person to resend the file to you. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with CDW extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open ASCON KOMPAS-3D Viewer

The operating systems may note enough free resources to run the application that support CDW files. Close all running programs and try opening the CDW file.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with KOMPAS Document file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle CDW files.

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