A pef file extension is related to the Macintosh Preferred Executable Format.

There is one other file type using
the PEF file extension!

pef icon.pef - Pentax Digital Camera Raw Image Format

Detailed description

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PEF file extension - Macintosh Preferred Executable Format

What is pef file? How to open pef files?

File type specification:

Program executable file type icon Program executable file type

The pef file extension is associated with the Preferred Executable Format, an executable file format used by applications written for Macintosh computers with PowerPC processors.

Obsolete file format not used in Mac OS X (macOS).

Help how to open:

Open in Macintosh computers.

How to convert:

As far as we know, this .pef file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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