There are 18 other file types using
the APP file extension!

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

empty icon.app - dBase application generator object

empty icon.app - DR-DOS executable application

app icon.app - Visual FoxPro application

app icon.app - Alphacam punch post

empty icon.app - ArcPad project file

empty icon.app - Psion OVAL data

empty icon.app - Timex Data Link USB application

empty icon.app - GEM application bundle

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

empty icon.app - Clarion for Windows application

empty icon.app - Cybiko computer application file

empty icon.app - Team Developer normal mode application

empty icon.app - OrbWorks PocketC CE application

empty icon.app - Symbian OS application

empty icon.app - ThecusOS application

empty icon.app - Atari picture image

empty icon.app - HarmonyOS App Package

APP file extension - Lotus Symphony add-in application

What is app file? How to open app files?

File type specification:

Plugin, addon file type icon Plugin, addon file type

The app file extension is associated with the Lotus Symphony an office suite for Windows, Mac and Linux that allows users to create documents, spreadsheets, presentations etc.

The app file stores add-in for Lotus Symphony.

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.

The default software associated to open app file:

Lotus Symphony picture or screenshot

IBM logoLotus Symphony  Microsoft MS-DOS software

Company or developer:
IBM

Lotus Symphony was an integrated software package for creating and editing text, spreadsheets, charts and other documents on DOS operating systems. It is not related with the latest IBM Lotus Symphony.

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 .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.

List of software applications associated to the .app file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open app file, edit app file, convert app file, view app file, play app file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting app files.

Software that import app file - Lotus Symphony add-in application

Programs supporting the exension app on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Lotus Symphony for import app file action.

Microsoft MS-DOS:

Previous file extension
APLP file extension

File-Extensions.org > Plugin, addon file types

Next file extension
file extension AQQ

 

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed