.ACCDR File

The accdr file extension is associated with Microsoft Access, a database management system, part of Microsoft Office Suite, developed by Microsoft Corporation.

The accdr files are simply renamed accdb Access database files.

By simply changing a database's file extension from accdb to accdr, users can create a "locked-down" version of their Microsoft Access 2007/2010/2013/2016 database.

When the extension is changed back to accdb the database has restored its full functionality.

An accdr file extension is related to the Microsoft Access 2007/2010/2013/2016. An accdr file stores Microsoft Access runtime mode database.

How to open:

Use Microsoft Access to work with the *.accdr files.

How to convert:

You can rename the file extension from *.accdr to *.accdb to restore the full functionally of the former database.