Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .appx

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .appx file?
  • Which program can create the .appx file?
  • Where can you find a description of the .appx format?
  • What can convert .appx files to a different format?
  • Which MIME-type is associated with the .appx extension?
Microsoft Windows 8 App Package .appx file icon

Microsoft Windows 8 App Package

APPX file is a Microsoft Windows 8 App Package. An app package is a container based on the Open Packing Conventions (OPC) standard. OPC defines a structured way to store data and resources for the app by using a standard ZIP file.
Category: Development files
Application: Microsoft Windows 8
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Windows 8 App Package Symbols
Microsoft Windows 8.1 App Bundle Package
Microsoft Windows 8.1 App Bundle Manifest File
Windows 8 App Upload Package
Microsoft Windows Encrypted App Package
Microsoft Windows 8.1 Encrypted App Bundle Package

Other types of files may also use the .appx file extension. If you have helpful information about .appx extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

SymbianOS Compiled Application
WebSuite Compiled Active Page
Visual FoxPro Application
Serif PagePlus Template
Alphacam Punch Post Data
Atari 8-bit Apac3 Linker-Viewer Image
Oracle WebLogic APPC Data
Ability Photopaint Image

The .appx filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

app (1), ppx (1), appc (1), apx (1)

Can't open a .appx file?

If you want to open a .appx file on your computer, you just need to have the appropriate program installed. If the .appx association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.appx

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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