File extension CRL
| File type | Certificate Revocation List |
| Developer | N/A |
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What is a CRL file?
CRL is an extension given to files used in certification mechanisms in Windows operating systems. They are used to control access to specific resources on the network. This solution is based on a public key infrastructure. The CRL file stores the list of certificates that have been revoked by the publisher. It contains their serial numbers and the reasons for revoking the certificate.
Due to the necessity of frequent updating of CRL lists, this solution was replaced with the OSCP mechanism, which allows to verify the validity of certificates on-line.
Program(s) that can open the .CRL file
How to open CRL files
If you cannot open the CRL file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports CRL among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the CRL file can be found in the table. Now just download and install the appropriate application.
Possible problems with the CRL format files
The inability to open and operate the CRL file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Certificate Revocation List file. Below is a list of possible problems.
- Corruption of a CRL file which is being opened
- Incorrect links to the CRL file in registry entries.
- Accidental deletion of the description of the CRL from the Windows registry
- Incomplete installation of an application that supports the CRL format
- The CRL file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the CRL file.
- Drivers of equipment used by the computer to open a CRL file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the CRL file should operate with your programs without any problem. If the problem with the CRL file has not been solved, it may be due to the fact that in this case there is also another rare problem with the CRL file. In this case, the only you can do is to ask for assistance of a professional staff.
Updated 09/12/2022
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How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.CRL) you have two ways to do it. The first and the easiest one is to right-click on the selected CRL file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the CRL file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. CRL) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.