APPX file format was introduced along with Windows 8 i Windows Phone 8.1 operating systems as a file distibution format for applications available on Windows Store. Application package is a container-type file that follows Open Packing Convention (OPC) standard describing hierarchical structure for storing data and other resources in ZIP archive format.
APPX file is an archive that contains application in its final form, ready for distribution and installation. Submitting APPX package to Windows Store requires user to pick a name for the app, attach details regarding sale model and list of available functions. Each submitted package needs to undergo a security and compatibility testing procedure.
Streamlined distribution of packages between computers, tablets, and phones – devices that vary in their characteristics – is the main goal that lead to creation of APPX file format. Traditional applications were based on clunky installers that were notorious for causing problems on mobile systems. APPX was designed to address this problem and make installing apps less of a hassle.
APPX file format was updated into more advenced version – APPXUPLOAD. Upgraded version introduced new functionality – option to send debugging information for the app.
Maximum size of APPX file is 2GB.
Programs that can handle APPX files are as follows. Files with APPX suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.
There can be multiple causes why you have problems with opening APPX files on given system. Fortunately, most common problems with APPX files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.
The main and most frequent cause precluding users form opening APPX files is that no program that can handle APPX files is installed on user’s system. This issue can be addressed by downloading and installing Microsoft Visual Studio or different compatible program, such as Microsoft Windows. The full list of programs grouped by operating systems can be found above. If you want to download Microsoft Visual Studio installer in the most secured manner, we suggest you visit Microsoft Corporation website and download from their official repositories.
You still cannot access APPX files although Microsoft Visual Studio is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of Microsoft Visual Studio installed, it may not support APPX format. The most recent version of Microsoft Visual Studio is backward compatible and can handle file formats supported by older versions of the software.
If the issue has not been solved in the previous step, you should associate APPX files with latest version of Microsoft Visual Studio you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.
Change the default application in Windows
Change the default application in Mac OS
If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the APPX file in question. Being unable to access the file can be related to various issues.
Should it happed that the APPX is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the APPX file is indeed infected follow the instructions below.
Did you receive the APPX file in question from a different person? Ask him/her to send it one more time. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with APPX extension was interrupted and the file data is defective. Download the file again from the same source.
There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Windows 8 App Package file.
If the systems has insufficient resources to open APPX files, try closing all currently running applications and try again.
Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Windows 8 App Package file. It may be the case that the APPX files work properly with updated software that addresses some system bugs.
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