.CER File Extension

Verified information
Information about the file CER
  • Internet Security Certificate
  • Web Files
  • N/A

What is the CER file?

The CER file extension can be associated with several types of files. Most often, however, a file with such an extension is associated with the Internet Security Certificate format. CER files are supported by Linux, Mac OS, Windows operating systems. The CER file is one of the Web Files files, just like 303 of the other files found in our file information database.

A program that can open the CER file is e.g. Safari. This software was released by Apple, Inc.. However, you can also use other applications, e.g. Adobe Acrobat, Adobe Reader, Mozilla Firefox, Microsoft Internet Explorer.

Programs, that can open .CER files

Microsoft Corporation
Microsoft Internet Explorer
Windows
Cross-platform
Adobe Systems Incorporated
Adobe Reader
Cross-platform
Adobe Systems Incorporated
Adobe Acrobat
Windows
Apple, Inc.
Safari
Mac OS
Cross-platform
Adobe Systems Incorporated
Adobe Reader
Cross-platform
Cross-platform
Adobe Systems Incorporated
Adobe Reader
Cross-platform

How to open a .CER file?

If you have problems opening the file CER, then in most cases the problem is only the lack of the proper application installed. Select one of the programs from the list and install it on your device. The operating system should automatically associate the CER file format with the installed program. If not, right click on your CER file and select from the menu "Open with" . Then select the installed program and confirm the operation. Now all CER files should automatically open with the selected program.

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