CER

cer icon

Lahey Fortran compilation error message

File type: Document file

A cer file extension is related to the Lahey Fortran compiler and development tool. A cer file stores compilation error message.

Found 5 different file type records with the same cer filename suffix.

What is cer file?

File type category:
Document file

Date updated: June 22, 2017

The cer file extension is associated with the Lahey Fortran compiler and development environment for Fortran programs.

The cer file stores information about errors created through compilation process.

The Fortran (a blend word derived from The IBM Mathematical Formula Translating System) is procedural, imperative programming language that is especially suited to numeric computation and scientific computing. Originally developed by IBM in the 1950s for scientific and engineering applications.

How to open cer file?

Use Lahey Fortran to work with *.cer files.

Suggested software to open cer file:

Associated software actions with the cer file

Software apps that create cer files:

no icon available Lahey Fortran (Microsoft Windows)

Software applications that handle other tasks involving cer files:

no icon available Lahey Fortran (Microsoft Windows)

Cerius2 data

File type category:
Various data file

Date updated: July 31, 2019

The cer file extension is associated with the Cerius2, an application used to discovery and analyzing drug chemical technologies.

The cer file contains various data used for internal purposes of Cerius2. 

Cerius2 technologies were implemented to  Discovery Studio.

Mime types:
chemical/x-cerius

How to open cer file?

Use compatible tools to work with *.cer files.

How to convert cer file?

Probably can be exported to other formats.

Suggested software to open cer file:

Associated software actions with the cer file

Software applications that can open cer files:

no icon available Cerius2 (Microsoft Windows)

no icon available Discovery Studio (Microsoft Windows)

Software applications that can edit cer files:

no icon available Cerius2 (Microsoft Windows)

Software capable of saving cer files:

no icon available Cerius2 (Microsoft Windows)

Software apps that create cer files:

no icon available Cerius2 (Microsoft Windows)

Software applications that handle other tasks involving cer files:

no icon available Cerius2 (Microsoft Windows)

no icon available Discovery Studio (Microsoft Windows)

Creatacard certificate project

File type category:
Various data file

Date updated: June 26, 2023

File extension cer is also iused in the Creatacard application used to create greeting cards developed by the AmericanGreetings.

A .cer file contains certificate project saved in the Creatacard document file format.

How to open cer file?

Use Creatacard to open .cer certificate project files.

How to convert cer file?

Probably can be converted to anything else.

Suggested software to open cer file:

Associated software actions with the cer file

Software applications that can open cer files:

no icon available CreataCard (Microsoft Windows)

Software applications that can edit cer files:

no icon available CreataCard (Microsoft Windows)

Software capable of saving cer files:

no icon available CreataCard (Microsoft Windows)

Software apps that create cer files:

no icon available CreataCard (Microsoft Windows)

Software applications that handle other tasks involving cer files:

no icon available CreataCard (Microsoft Windows)

Internet security certificate

File type category:
Email attachment blocked file
Various data file
Internet related file

Date updated: June 27, 2025

The cer file extension is associated with the Internet Security Certificate files. Security certificates are used to Secure Internet server, web site transactions, logins, webmail and connections. They can use SSL encryption.

MIME types:

application/x-x509-ca-cert
application/pkix-cert

How to open cer file?

Use compatible tools to work with *.cer files.

Suggested software to open cer file:

Associated software actions with the cer file

Software applications that handle other tasks involving cer files:

Microsoft Edge icon Microsoft Edge (Microsoft Windows)

Microsoft Internet Explorer icon Microsoft Internet Explorer (Microsoft Windows)

Firefox icon Firefox (Microsoft Windows)

Opera browser icon Opera browser (Microsoft Windows)

Google Chrome icon Google Chrome (Microsoft Windows)

Chromium icon Chromium (Microsoft Windows)

SeaMonkey icon SeaMonkey (Microsoft Windows)

Safari for Microsoft Windows icon Safari for Microsoft Windows (Microsoft Windows)

Opera browser for Mac icon Opera browser for Mac (Apple macOS / Mac OS X)

Google Chrome for Mac icon Google Chrome for Mac (Apple macOS / Mac OS X)

Safari icon Safari (Apple macOS / Mac OS X)

Firefox for Mac icon Firefox for Mac (Apple macOS / Mac OS X)

Chromium for Mac icon Chromium for Mac (Apple macOS / Mac OS X)

Seamonkey for Linux icon Seamonkey for Linux (Linux/Unix)

Firefox for Linux icon Firefox for Linux (Linux/Unix)

Google Chrome for Linux icon Google Chrome for Linux (Linux/Unix)

Chromium for Linux icon Chromium for Linux (Linux/Unix)

Opera Mini for iOS icon Opera Mini for iOS (Apple iOS)

Opera Mobile icon Opera Mobile (Google Android)

Opera Mini for Android icon Opera Mini for Android (Google Android)

Opera Mini icon Opera Mini (Other operating systems or devices)

Sierra Print Artist certificate

File type category:
Document file

Date updated: August 29, 2018

The cer file extension is associated with the Sierra Print Artist application used to create cards, calendars, stationery and other assorted crafts.

The cer file contains saved certificate. Sierra was acquired by Activision Blizzard.

How to open cer file?

Probably not meant to be accessed by the user.

How to convert cer file?

Probably cannot be converted to anything else.

Suggested software to open cer file:

Associated software actions with the cer file

Software apps that create cer files:

no icon available Print Artist (Microsoft MS-DOS)

Software applications that handle other tasks involving cer files:

no icon available Print Artist (Microsoft MS-DOS)