APPX file format description

Many people share .appx files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .appx file can be edited, converted or printed with. On this page, we try to provide assistance for handling .appx files.

1 filename extension(s) found in our database.

.appx - Microsoft Windows 8 App Package

The APPX development files are related to Microsoft Windows 8. 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.

Application:

Microsoft Windows 8

Category:

Development files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Microsoft Windows 8 App Package related extensions:

.tsq: Transact-SQL Script
.ddl: Data Definition Language File
.mdx: Multidimensional Expressions Script
.dmx: Microsoft SQL Server Data Mining Extension
.cwproj: C Omega Project
.per: PEX Report

Naturally, other applications may also use the .appx file extension. Even harmful programs can create .appx files. Be especially cautious with .appx files coming from an unknown source!

Can't open a .appx file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this 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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .appx file extension is often given incorrectly!

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

apx, app, ppx, appc

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.apx: Ability Photopaint Image
.apx: WebSuite Compiled Active Page
.app: SymbianOS Compiled Application
.app: Visual FoxPro Application
.app: Alphacam Punch Post Data
.ppx: Serif PagePlus Template

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-appx-files

If you have useful information about the .appx file format, then write to us!

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