PEF file format description

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

2 filename extension(s) found in our database.

.pef - Pentax Electronic Format

The PEF graphic files are related to Pentax Photo Browser. The PEF file is a Pentax Electronic Format image. It is a raw image file contains minimally processed data from the image sensor of a Pentax digital camera. The Pentax Photo Browser seems to be no longer supported.

Application:

Pentax Photo Browser

Category:

Graphic files

Mime-type:

image/x-pef

Magic:

- / -

Aliases:

ptx

Pentax Electronic Format related extensions:

.jpd: Joint PhotoDefiner Image
.imt: TMSat Thumbnail Image
.wpg: Corel WordPerfect Graphics Metafile
.usertile-ms: Windows 8 User Tile Data
.acb: Adobe Photoshop Color Book
.skitch: Skitch Image

.pef - Preferred Executable Format

The PEF application files are related to Mini vMac. The PEF file is a Preferred Executable Format. It is the native executable format for the PowerPC based Macintosh. The PEF is a file format that specifies the format of executable files and other object code on Mac OS operating system.

Application:

Mini vMac

Category:

Application files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Preferred Executable Format related extensions:

.isu: InstallShield Uninstall Script
.dld: CR10X EdLog Compiled Program
.fas: Compiled Fast-Load AutoLISP
.bundle: Mac OS X Application Plug-in
.a4r: Macromedia Authorware Packaged File without Runtime
.386: Windows 3.x Virtual Device Driver

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

Can't open a .pef 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.pef

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 .pef file extension is often given incorrectly!

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

ef, epf, lef, oef, p3f, pdf, pe, peb, pec, ped, pee, peg, per, pet, pev

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.ef: Diploma Exam File
.pev: CompHEP Output File
.prf: MOUSE HD Results Data
.prf: Microsoft Outlook Profile
.psf: ArcSoft PhotoStudio Image
.pec: Brother Home Embroidery File

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-pef-files

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