COF File Extension

What is COF file?

COF filename suffix is mostly used for AutoDesk Data Format files. Autodesk defined the AutoDesk Data Format format standard. COF files are supported by software applications available for devices running Windows. Files with COF extension are categorized as Data Files files. The Data Files subset comprises 1326 various file formats. Users are advised to use AutoCAD software for managing COF files, although 1 other programs can also handle this type of file. On the official website of Autodesk, Inc. developer not only will you find detailed information about theAutoCAD software, but also about COF and other supported file formats.

Programs which support COF file extension

The following listing features COF-compatible programs. COF files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with COF extension?

Being unable to open files with COF extension can be have various origins. Fortunately, most common problems with COF files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install AutoCAD

The most common reason for such problems is the lack of proper applications that supports COF files installed on the system. This one is an easy one. Select AutoCAD or one of the recommended programs (for example, AutoCAD Civil) and download it from appropriate source and install on your system. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. If you want to download AutoCAD installer in the most secured manner, we suggest you visit Autodesk, Inc. website and download from their official repositories.

Step 2. Update AutoCAD to the latest version

You still cannot access COF files although AutoCAD is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of AutoCAD installed, it may not support COF format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using AutoCAD.

Step 3. Associate AutoDesk Data Format files with AutoCAD

If the issue has not been solved in the previous step, you should associate COF files with latest version of AutoCAD you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Selecting the first-choice application in Windows

• Right-click the COF file and choose Open with option
• Click Choose another app and then select More apps option
• Finally select Look for another app on this PC, point to the folder where AutoCAD is installed, check the Always use this app to open COF files box and conform your selection by clicking OK button

Selecting the first-choice application in Mac OS

• From the drop-down menu, accessed by clicking the file with COF extension, select Information
• Find the Open with option – click the title if its hidden
• Select AutoCAD and click Change for all...
• If you followed the previous steps a message should appear: This change will be applied to all files with COF extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the COF is not faulty

Should the problem still occur after following steps 1-3, check if the COF file is valid. It is probable that the file is corrupted and thus cannot be accessed.

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

If the COF is indeed infected, it is possible that the malware is blocking it from opening. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the COF file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

If you obtained the problematic COF file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the COF file has been downloaded from the internet only partially, try to redownload it.

3. Check if the user that you are logged as has administrative privileges.

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the AutoDesk Data Format file.

4. Verify that your device fulfills the requirements to be able to open AutoCAD

If the systems has insufficient resources to open COF files, try closing all currently running applications and try again.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with AutoDesk Data Format files. It may be the case that the COF files work properly with updated software that addresses some system bugs.

Do you want to help?

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