CER File

What are CER files and how to open them

Are you having problems opening a CER file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a CER file?

CER files have multiple uses, and Internet Security Certificate is one of them. Read more about the others further down the page.

Internet Security Certificate

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open CER files

Important: Different programs may use files with the CER file extension for different purposes, so unless you are sure which format your CER file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 7 different CER openers which you will find listed below.

Last updated: December 3, 2022

More file formats using the CER extension

Through our research of CER files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • MSI/Accelrys Cerius II

Various apps that use files with this extension

These apps are known to open certain types of CER files. Remember, different programs may use CER files for different purposes, so you may need to try out a few of them to be able to open your specific file.

The Print ShopThe Print ShopUser submitted
PrintMasterPrintMasterUser submitted
ScrapbooksScrapbooksUser submitted
Print ArtistPrint ArtistUser submitted
DigitalSign ProfessionalDigitalSign ProfessionalUser submitted
DigitalSign ReaderDigitalSign ReaderUser submitted
Expert Stationery ShopExpert Stationery ShopUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about CER file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.