.CSR File Extension

File Type:
Certificate Signing Request File

Having trouble opening .csr extension? Don't panic! This page explains what csr files are as well as suggests programs you may use to open csr files. You can download these programs through this page.

What is a CSR file?

Csr file extension has Certificate Signing Request file type, which is associated with the "web files" category.

These are files for requesting a digital certificate. A CSR file contains encrypted information about the applicant of the certificate, includes data about the country, organization, email address, and public key. Certificate Authorities use these files to establish the validity of websites. In the process of generating a CSR file two keys are created – a public one and a private. The first one is included in the CSR file; the second one is required to sign the CSR file digitally.

To learn how you can open the given file, read the information below.

csr file icon
File Type:
Certificate Signing Request File
Web Files

How to open CSR file?

Double click the csr file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .csr extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the csr extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the csr file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open CSR files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the csr file as well. Download Universal File Viewer for your OS.

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