The File Extensions Database

.ADP File Extension

  • Developer by: Microsoft
  • Category: Database Files

What is an .ADP file?

.ADP is Access Project

Access project file that connects directly to database tables and other database objects; does not contain actual tables or queries, but is connected directly to a MSDE or SQL Server database, which stores the actual tables and database diagrams.

Programs that open Access Project
Microsoft Access 2016

How to solve problems with ADP files

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