File Extension CSR

Researcher:   |   Refreshed: November 26, 2018

Microsoft Silver

CSR File Summary

Most CSR files can be viewed with two known software applications, typically OpenSSL developed by Open Source. and associated with the Certificate Signing Request File format as it's primary file type. The majority of CSR files are considered Web Files.

We have found CSR files on the Windows, Mac, and Linux operating systems. They are both mobile and desktop device friendly. The CSR File Extension carries a Popularity Rating of "Low", meaning that these files are scarcely found in most user's file stores.

Although there is a lot more to know about CSR files, those are the most important details of these types of files. If you are having trouble opening these files, or would like more detailed information, please see our comprehensive information below.

Low
Popular
1744
Rank

/ 11690

Active

Mode

26

November

2018

Updated

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Known CSR Files


Dominant CSR File Type

.CSR
File Ext:.csr
Category:Certificate Signing Request File

The CSR file is a file created as a signing request for a digital certificate.The CSR contains an encrypted block of text that identifies the applicant of the certificate and includes encrypted data for country, state, organization, domain, email address, and public key.The CSR is used by a Certificate Authority to establish proof of identity for Web sites.

Programmer: Open Source
Division:Web Files
Key: HKEY_CLASSES_ROOT\.csr

Software Programs That Open The Certificate Signing Request File:


OpenSSL by Open Source

Windows
Mac
Linux

Microsoft IIS by Microsoft Corporation

Windows

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CSR Popularity


OS Ranking

7 (45.73%)
10 (44.56%)
8.1 (5.41%)
XP (2.79%)
8 (0.97%)


Troubleshoot CSR Files


Frequent CSR Opening Issues

OpenSSL Isn't There

If you attempt to load your CSR file, you experience a message such as "Can't Open CSR Files". Generally, this is experienced in %%os%% because OpenSSL isn't installed on your PC. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.


Tip: If you don't have OpenSSL installed, and you know of another program to open your CSR file, you can try opening it by selecting from the programs listed under "Show Apps".


OpenSSL Requires Update

In other instances, your Certificate Signing Request File file version may not be supported by your version of OpenSSL. If you do not have the proper version OpenSSL (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. This problem is predominately due to having a Certificate Signing Request File file version that was created by a newer version of OpenSSL than what you have installed on your PC.


Tip: Sometimes you can get a clue about the version of CSR file you have by right clicking on the file, then clicking on "Properties" (Windows) or "Get Info" (Mac OSX).


Primarily, problems experienced when opening CSR files are due to having the incorrect version of OpenSSL installed on your computer.


Additional CSR Opening Issues

You can still experience errors opening CSR files even with the latest version of OpenSSL installed on your PC. Other CSR opening errors can be created by other system problems inside of %%os%%. Other contributing causes:

  • Invalid CSR file references in the Windows Registry (the "phonebook" of the Windows Operating System)
  • Mistaken removal of the Windows registry CSR description
  • Corrupt install of OpenSSL or other CSR-related program
  • CSR file corruption
  • Your CSR is infected with malware
  • CSR-related hardware has device drivers that obsolete
  • Your computer does not have the adequate system resources to open the Certificate Signing Request File format

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