The .CER file refers to Internet Security Certificate. These are trust files used on the internet by browsers to validate the authenticity of the webpage providers. This is useful when we want to browse the web using the https secure protocol.
The security CERtificates are provided by a third party which ensure that the identity of the web page server is genuine and authentic. There are various SSL and CER CERtification providers on the internet which validate the authenticity of the web page provider. The file structure is simple and refers to the principle of public private key cryptography.
| File type | Internet Security Certificate |
| Developer | Lack of information |
| Popularity | |
| Share |
While searching for an answer to the question - How to open the CER file? - you probably found websites, which offer software that was able to open any file extension. Do not be fooled, there is no one program that will allow you to work with any file extension, including the CER file. Each program contains a different type of data and you need specialized software to properly work with the CER file. Here is a list of programs that are designed to work with the CER file - remember, these applications are able to open at most a few file extensions, they are designed to work with a specific data type.
If after installing the program from a list, you still cannot open a file with the CER extension, the reason may be that the file is damaged. The solution may be to find a new copy of the CER file you want to open
In this case, the easiest way is to use the tool built into the operating system for association of the CER file with applications to support it. Double click on the file you cannot open - the operating system will display a list of programs that are likely to work with your CER file. Choose one of them, or select the location on a disk where you installed one of the applications from our list. Windows should then open the CER file using the program installed earlier.
Entries containing links of the CER file extensions with applications is located in the HKEY_CLASSES_ROOT. If you do not know how to get to the Windows Registry, or how to make changes in it, ask a specialist for help. Lack of knowledge on the subject may cause irreversible changes on your computer.
There may be a situation when a computer virus passes itself off as the CER file. In this case, such a file will definitely not be opened. Download a good antivirus program and scan the CER file mentioned. If the antivirus application detects malicious data, it may signify that the CER file is infected.
| CELTX | Celtx Project Format |
| CEIMG | CeRegEditor Registry Image |
| CEF | CenturionMail Format |
| CEM | Empire Earth Game Format |
| CE0 | Winewar Worm |
| CED | JVC Corrupted Video Format |
| CEA | DAZ 3D Carrara Pro Export |
| CELX | Celestia Script |
| CET | Hitachi Cobol |
| CERTAUTHORITYCONFIG | Apple Mac OS X Certificate Assistant Configuration |
