The File Extensions Database

.APPLICATION File Extension

  • Developer by: Microsoft
  • Category: Settings Files
  • Format: XML

What is an .APPLICATION file?

.APPLICATION is ClickOnce Deployment Manifest File

File created for ClickOnce, a Microsoft framework used to deploy Windows applications over the Web; stores program deployment properties in an XML format, including name, version, description, deployment options, and dependencies; may also contain a digital signature.

APPLICATION files were designed to provide easy "one click" deployments of user-level Windows applications. They have a corresponding .APPREF-MS file that activates ClickOne for a program, which subsequently executes within the .NET framework in Windows.

Programs that open ClickOnce Deployment Manifest File
Microsoft Visual Studio 2017
Microsoft .NET Framework

How to solve problems with APPLICATION files

  • Associate the APPLICATION file extension with the correct application. On :
    Windows: Right click on any APPLICATION file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.APPLICATION files". Mac: Right click (or Ctrl-click) the APPLICATION file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .APPLICATION is ClickOnce Deployment Manifest File. Because only the current version supports the latest APPLICATION file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available .APPLICATION is ClickOnce Deployment Manifest File update.
  • To make sure that your APPLICATION file is not corrupted or virus-infected, get the file again and scan it with antivirus software.