An fdf file extension is related to the Client Access Express format description.

There are 2 other file types using
the FDF file extension!

fdf icon.fdf - Adobe Acrobat Portable Document input form

empty icon.fdf - Origin fitting function definition

Detailed description

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FDF file extension - Client Access Express format description

What is fdf file? How to open fdf files?

File type specification:

Various data file type icon Various data file type

The fdf file extension is associated with the AS/400 Client Access Express, a program for Microsoft Windows, which allows users to connect PC desktop with AS/400 system.

The fdf file contains format description.

This fdf file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .fdf 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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