CSR Opener

File Type

Certificate Signing Request Format




Web Files





How to open CSR file?

CSR File Opener

CSR Opener is a type of software that can open a file with the extension CSR. Usually, there are also additional options. If you have the appropriate software installed on your device, opening the CSR file should be done without any problems by double-clicking on the file's icon. After clicking, your CSR file should open in the program that is assigned as default for handling CSR files on your device. However, if an error occurred while opening the file, you can try to fix it by following the instructions below in turn.

How to open CSR file? 9 steps

If the user comes across a file named Certificate Signing Request Format, but is unable to open it, the first thing to do is to take the following steps:

  1. The user must verify that the operating system used by him is compatible with the file Certificate Signing Request Format. If the user tries to open the file Certificate Signing Request Format on a system other than Linux, Mac OS, Windows, it may fail.
  2. No default OpenSSL application in the system or Microsoft IIS will prevent you from opening CSR files. If there is no such program, install it (or download it earlier).
  3. Check if files with the extension CSR are associated with the application OpenSSL or one of the programs such as Microsoft IIS. If this is not the case, you should manually set the program, preferably by editing the properties of the Certificate Signing Request Format file and displaying the applications available on the system that allow you to open it. On the list, search for one of the OpenSSL, Microsoft IIS applications and confirm.
  4. Software programs that open CSR file extension

  5. Files ripped from external media or downloaded from the Internet may have a damaged structure. In this case, the OpenSSL, Microsoft IIS programs will not be able to open the Certificate Signing Request Format file despite their presence in the system. Try to download or copy the file again.
  6. The antivirus program can identify the virus with which the Certificate Signing Request Format file has been infected and at the same time blocks the opening of the file. In this situation, it is recommended to scan all data media in the system for viruses.
  7. Check that the Certificate Signing Request Format file format is not outdated. The application the user is trying to open the file in may not be backwards compatible and this prevents Certificate Signing Request Format from opening.
  8. To open the Certificate Signing Request Format file, the current version of the program in which we want to open it is required. In this case, it is necessary to verify the version of your software to handle CSR files and, if necessary, update it to the latest version.
  9. Sometimes the user unknowingly tries to open a file with a shortcut that points to a place where the file is no longer there (it may have been previously deleted).
  10. The system administrator has restricted the opening and modification of certain files, which in this case may include Certificate Signing Request Format.

Useful tools

If, despite going through all the steps, it was not possible to open the file with the CSR extension, you can try some of the proposed tools. The list below presents web pages that specialize in opening CSR files.


Free Online File Open Service


open CSR file CSR opener CSR open free online


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