alphabetical list of extensions

File extension .APPX

File description

APPX file extension is a format that is helpful in installing and distributing middleware and application software in Windows 8. The files are capable to transform the XAP file format on all Windows Phone, ranging from version 8.1 and onwards so that distribution of programs can be made unified.

APPX files can be easily downloaded through Windows Marketplace on the SC cards that ultimately require users to manually install them. APPX files are only designed for Window 8.1 and versions after it so it is useless for Mac or Lunix users. The file extension is meant for software developers since it is capability to store heavy applications and programs. Though, to use APPX file extension, developers must possess some technical skills and learn how to solve the arising problems.

Description of the problem
If you have on your computer a .APPX file that you cannot open, you are in exactly the same situation as thousands of other people who have similar problems with this or any other unknown file.

There may be several reasons why you cannot open the file with .APPX extension. Directly on this website you can find a solution of the most common problem with the .APPX file – that you do not have on your computer the appropriate program to open the file.
From the list below, select the appropriate program, install it and double click on the icon of a file that did not want to open - the problem with the .APPX file extension should be solved. However, if this does not happen, go back to the website to learn about other possible causes of the error, which have been described at the bottom of the website.
Developer Files
File name: Windows 8 App Package
Programs that will open this file:
Microsoft Windows Microsoft Windows
Visual Studio Visual Studio
The .APPX file extension can correspond to several not related file formats. If there is more than one file format with the .APPX extension, you will probably find most of them at this website. Remember that you need to download a program to support a particular file type. So first look through the entire contents of the website to select a program to support just the file you have.

Other possible reasons why your .APPX file does not want to open

In addition to the problem described above, i.e. the lack of the appropriate application to support the .APPX file, there may be several reasons that cause problems with opening and operation of the data format:

1. Incorrect version of the installed application

A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .APPX file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .APPX file, so download the update and check again.

2. Incorrect .APPX file association with the program

If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:

  • Right-click the .APPX file
  • Go to the "Open with" - then "Choose default program ..."
  • Locate the appropriate application
  • Click "OK"

3. The file is corrupt

It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.