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Navigation: Home > APPX file

Informations about the APPX filename extension and the file formats associated with it

We collected the information you should know about the .appx filename on this page. If you were sent a(n) .appx file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.appx - Microsoft Windows 8 App Package

The APPX file is a Development file, which is connected to the Microsoft Windows 8 App Package according to our registry. With the adequate settings, the Microsoft Windows 8 App Package (.appx) files can be opened or converted with the help of Microsoft Windows 8.

Format description:
APPX format
Microsoft Windows 8
Magic string:
- / -
Related links:
Related extensions:
Microsoft Windows 8.1 App Bundle Package
Microsoft Windows 8.1 App Bundle Manifest File
Microsoft Windows 8 Desktop Theme Pack
Microsoft Windows 8 Piano Song

Important! Programs other than the ones listed above may also use the .appx file extension. Even harmful programs can create files with the .appx extension to store data in them. Always be careful with .appx files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .appx file can’t be opened on your computer?

If the program necessary for opening the .appx file is installed properly on your computer, then the quickest and simplest way to open the .appx file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .appx file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .appx extension

The .appx filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .appx files.

app, apx, ppx

Maybe you’re not even looking for the .appx file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .appx extension. It’s possible that the one you’re looking for is among them.

SymbianOS Compiled Application
Visual FoxPro Application
Alphacam Punch Post Data
Ability Photopaint Image
WebSuite Compiled Active Page
Serif PagePlus Template

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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