CER file format description

Many people share .cer files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cer file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cer files.

1 filename extension(s) found in our database.

.cer - Broderbund PrintMaster Certificate

The CER document files are related to PrintMaster. CER file is a Broderbund PrintMaster Certificate document. PrintMaster is a software for making card, posters, banners, etc.

Application:

PrintMaster

Category:

Document files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Broderbund PrintMaster Certificate related extensions:

.ban: Broderbund PrintMaster Banner
.biz: Broderbund PrintMaster Business Card
.cal: Broderbund PrintMaster Calendar
.car: Broderbund PrintMaster Card
.env: Broderbund PrintMaster Envelope
.lbl: Broderbund PrintMaster Label

Naturally, other applications may also use the .cer file extension. Even harmful programs can create .cer files. Be especially cautious with .cer files coming from an unknown source!

Can't open a .cer file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:

example.cer

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .cer file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

ser, ecr, cef, xer, cdr, cwr, crr, cr, cet, ced, ver, er, der, csr, cre

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.ser: Java Serialized Object
.cef: CenturionMail Encrypted Email
.ecr: Ecrypt Encrypted File
.cdr: CorelDraw Drawing
.csr: Certificate Signing Request
.ceg: The Punisher Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-cer-files

If you have useful information about the .cer file format, then write to us!

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