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CRL file extension

The table below provides useful information about the .crl file extension. It answers questions such as:

  • What is the .crl file?
  • What program do I need to open a .crl file?
  • How can the .crl file be opened, edited or printed?
  • How can I convert .crl files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Certificate Revocation List

Certificate Revocation List .crl file icon
CRL file is a Certificate Revocation List. A CRL is a list that is maintained by a Certificate Authority (CA) and records the serial numbers of certificates that have been revoked.
Category: Data files
Application: Microsoft IIS
Mime-type: application/pkix-crl
Magic number: -
Magic string: -
Sample: -
CRL aliases:
CRL related links:
CRL related extensions:
Certificate File

Key Database File

PKCS #12 Data File

PKCS #7 Encrypted Message

Microsoft Serialized Certificate Store


PKCS7 Signature

PGP Security Signature/Key

GnuPG Signature/Key

Java Key Store

Other types of files may also use the .crl file extension.

🚫 The .crl file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cdl, cel, cfl, cgl, cl, clr, cr, cr1, cri, crm, cro, crp, ctl, drl, frl

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

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WinBatch Studio Syntax Color Customization
Apple Color Picker Palette
Aldus PhotoStyler Color Definitions Data
FARSITE Color Data
WinMX Color Scheme
MODTRAN Cooling Rate Data
Common Data Form Language File
IMVU Product Data

🔴 Can't open a .crl file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .crl file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .crl file extension, write to us!

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