The File Extensions Database


.AAO File Extension

  • Developer by: US Army
  • Category: Game Files
  • Format: Binary

What is an .AAO file?

.AAO is America's Army Map File

Map file used by America's Army (AA), a multi-player shooter game released by the US Army; contains a game map, including terrain, buildings, and other objects; used to create and share custom maps.

AAO files are stored in the Maps directory of an AA installation.

File Type 2 Agenda At Once File
Developer by: Dataland Software Category: Data Files Format: Binary

File created by Agenda At Once, a Personal Information Manager (PIM) that helps users manage their To-Do lists; contains tasks, notes, calendars, contacts, deadlines, and percentages complete; used to store personal reminders and organize personal schedules.

How to solve problems with AAO files

  • Associate the AAO file extension with the correct application. On :
    Windows: Right click on any AAO file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.AAO files". Mac: Right click (or Ctrl-click) the AAO 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 .AAO is America's Army Map File. Because only the current version supports the latest AAO file format. Search, therefore, e.g. on the US Army manufacturer website after an available .AAO is America's Army Map File update.
  • To make sure that your AAO file is not corrupted or virus-infected, get the file again and scan it with antivirus software.