File Extension Database

Open CER File

To open CER file you need to find an application which works with that kind of file. CER file extension is used by operating systems to recognize files with content of type CER. Here is some information which will get you started.

How to Open CER file

  • To see if you have an application which supports CER file format you need to double click on the file.
  • This will either open it with matching application or Windows operating system will suggest you to look for an application for file extension CER either on web or on local computer.
  • If there is no application on your computer which can open CER files you need to search on the internet which application can open CER files.

What is CER File?

File extensions help computers locate correct application for specific files. Operating systems will not look into the content of the files to be opened, but instead, it will immediately locate the file extension of the file and locate for associated application that can open CER files. This helps the computer to organize its functions and work much faster. Most operating systems (Windows) require the use of file extensions, but others do not (Unix).

These file extensions are also beneficial for us. By simply looking at the filename, we can determine what type of information is stored to that and what applications can open these files. Have you noticed that when your computer acquires an unknown file, it will ask your permission to look for associated program to open it or look for these programs over the Internet? Yes! These file extensions make the work of the computer easy. Once there is no application associated with the file, then the computer will immediately ask the users assistance to help look for the source files.

CER File Applications

If you know which application opens file extension CER and it is not mentioned on our site please e-mail us via contact form.

For more information on how to open CER files read other articles on this website.

Typical CER application file locations:

  • %SystemRoot%\system32\rundll32.exe cryptext.dll
  • C:\Windows\system32\rundll32.exe cryptext.dll,CryptExtOpenCER %1

Typical CER mime types:

  • CryptExtOpenCER %1
  • application/x-x509-ca-cert

Frequently associated Windows objects:

  • CERFile

Open CER File on Windows

Open CER File on Mac OS

Open CER File on Android

If you downloaded a CER file on Android device you can open it by following steps below:

Open CER File on iPhone or iPad

To open CER File on iOS device follow steps below:

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CER file article translations

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