ao

ActionOutline data

aoa

Adaptive Optics AOA data

aob

DVD Audio Object data

aod

Microsoft Dynamics AX object data

aof

Artlantis object

aoi

AOI scene data

aois

CFS Console add-on installer settings file

aol

America Online related data

aom

Adobe After Effects output settings

aon

ArtOfNoise Amiga audio data

aop

JBoss AS JAR archive

aorder

FotoMagica data

aos

Nokia 9000 Communicator add-on software

aot

ZenWorks snAppShot application binary object template

ap

WHAP compressed Amiga archive

ap0

Microsoft Windows APW_data

ap11

Siemens TIA V11 data

ap12

TIA version 12 project

ap13

TIA Portal project

ap2

ActivInspire resource pack

ap3

Asprova project

ap4

Kids&Us Talking Pen audio

apa

RSView Application Manager project archive

apalbum

Apple Aperture album

apb

Alphacam punch VB macro

apc

Lotus printer driver characters

apcdoc

Ashampoo Photo Commander data

apd

Eclipse plugin descriptor file

apdb

Apple Photo library

apdetected

Apple iPhoto data

apdisk

Apple macOS disk information data

ape

Monkey's Audio lossless audio compression format

apertureexport

Apple Aperture data

apex

AVM Sample Studio bank file

apf

Lotus printer driver fonts

apfacename

Apple iPhoto face data

apfolder

Apple Photos data

apg

Ivana animated GIF file

aph

Ability Photoalbum album database

api

Adobe Acrobat plugin

apin

Adobe InDesign import/export filter

api_filters

Eclipse API settings

apj

Angel Debug Monitor project

apk

Google Android application package

apkg

Anki deck package

apl

Team Developer application library

aplg

Audials One add-on

aplibrary

Aperture pictures library database

apln

Adobe InDesign 3rd party plug-in

aplp

Audials One add-on installation package

aplt

AppleScript applet

apm

Aldus Placeable metafile image

apmaster

Apple Photos data

apmx64

API Monitor data

apmx86

API Monitor captured data

apn

Alpine wallpaper

apng

Animated portable network graphics

apnx

Amazon Kindle ebook index

apo

Abacre Paperless Office data

app

Mac application package or core system service

app-se

Sony Ericsson XPERIA X10 data

appc

WebLogic file

appcache

HTML5 cache manifest

appcontent-ms

Microsoft Windows application content

appdata

VMware cache

appdownload

Mac OS App Store incomplete download

appicon

VMWare cache

appimage

Application portable image

appinfo

VMware Workstation appData cache file

applace

Apple Photos data

apple

Apple AppleSingle data

appledouble

Apple AppleDouble resource data

applescript

AppleScript script

applesyncinfo

iOS data

applet

Eclipse IDE for Java Developers data

appletviewer

Java appletviewer data

apple_partition_map

Apple partition scheme

application

ClickOnce deployment manifest

appodeal

Google Android Appodeal SDK data

appref-ms

Application Reference data

approj

ActivePresenter project

appt

Authentica Secure Office protected PowerPoint presentation

appup

Erlang application upgrade file

appv

App-V archive

appx

Microsoft AppX application package

appxbundle

Microsoft Windows app bundle package

appxmanifest

Windows Store app source manifest

appxsym

Microsoft Visual Studio Windows 8 application information

appxupload

Microsoft Visual Studio Windows application upload data

apr

ArcView project

apref-ms

Application reference data

aprj

ApacheConf project

apr_lib

Altium Designer aperture library

aps

Microsoft Visual C++ binary resource

apt

Alphacam punch tool data

apu

Canon G3 corrupted RAW image

apv

Acerose password data

apvault

Apple Aperture vault

apversion

Apple Photos data

apvolume

Apple Photos data


What file extension actually is?

Simply put, file extensions are the characters after the dot in the file name, so for example filename.mp3 has file extension „mp3“. This helps Windows to identify which program should be used to open the file.

We can help you to open your file

Our database contains a huge list of different file extensions, usually with detailed description and programs that can be used to open or otherwise work with that particular file type.

Only original software

Every software listed in our database is verified and ve provide link to the developer or to the software own website, which should hopefuly be enough for you to download the most recent version of the program.