File Extension Database

Open CEF File

Up to now, CEF extension files have two possible formats, depending on their application, which you will see below:

Class Action Gradebook Elementary

In this first application, the CEF file is created by the Elementary Edition of Class Action Gradebook, a program used by teachers to record elementary school grades.

Class Action Gradebook Elementary Edition is a tool used by elementary teachers to track the progress of their class, calculate grades, and submit reports.

It is fully featured and highly customizable, allowing you to add the subjects you teach and include notes or other information about each student.

This app is designed to be used by elementary school teachers instructing a class in multiple subject areas.

The CEF file is used to store the list of students in the class and the assignments, as well as the evaluated grades.

It can also be used to generate report cards.

CenturionMail

For CenturionMail, the CEF file is an encrypted file, having compression, encryption, and a password that is required to extract the file.

CenturionMail is an encryption tool with the ability to encrypt emails, attachments, folders, and also direct passwords for security.

CEF files are used for the secure sending of files by email.

CEF files are not created automatically, instead, by default, CenturionMail creates files with the extensions ZIP, CAB, or EXE.

However, you can also use the 'Custom Extension File' option to create CEF files.

Available software packages to open a CEF file

CalEd Class Action Gradebook (Not available)
CenturionSoft CenturionMail (Not available)

How Can I Open CEF File on Windows

We researched and learned that the best way to open CEF file is to find a CEF file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a CEF file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open CEF file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as CEF file opener then try to search online for "CEF viewer", "application to open CEF file" or "open CEF file" queries in the search engine you like.
Install the application you found and check if it can open CEF file

How Can I Open CEF File on Mac OS

We recommend to find a CEF file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a CEF file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with CEF file.
If you know the Mac OS application which can work as CEF file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open CEF file in it.
If you don't know the application which can open CEF file then try to search for "CEF viewer", "application to open CEF file" or "read CEF file" queries in the online search engine you like.
Install the application you found and check if it can read CEF file

How Can I Open CEF File on Android

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

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded CEF file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "CEF".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "CEF viewer", "CEF file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open CEF File on iPhone or iPad

To open CEF File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the CEF file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "CEF". This way you can find apps which can open CEF files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "CEF viewer" or "CEF file" online in your favorite search engine.

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