There are 17 other file types using
the APP file extension!

app icon.app - Mac application package or core system service [common]

empty icon.app - Lotus Symphony add-in application file

empty icon.app - dBase application generator object

empty icon.app - DR-DOS executable application file

app icon.app - Visual FoxPro application

app icon.app - Alphacam punch post file

empty icon.app - ArcPad project file

empty icon.app - Timex Data Link USB application file

empty icon.app - GEM application bundle

empty icon.app - CA Visual Objects platform for developer (CAVO) project file

empty icon.app - Clarion for Windows application

empty icon.app - Cybiko computer application file

empty icon.app - Team Developer normal mode application file

empty icon.app - OrbWorks PocketC CE application file

empty icon.app - Symbian OS application file

empty icon.app - ThecusOS application file

empty icon.app - Atari picture image

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APP file extension - Psion OVAL data

What is app file? How to open app files?

File type specification:

Program executable file type icon Program executable file type

The app file extension is related to the Psion OVAL.

It is a rapid development environment for hand helds - quick, cost-effective programming.

One of the great things about the Psion computers is how easily they can be programmed.

This can be done on the Psion machine itself (using the built-in OPL editor) or by using a PC-based software development kit (SDK), software development environment (SDE) or Psion 'emulator'.

This app 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 APP files:

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 file with extension APP:

As far as we know, this .app 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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