What is an ACCDR file?
An .ACCDR file is an Access Runtime Application created by Microsoft Access. Developers use this format to distribute database applications to users. When you open an .ACCDR file, it runs in a locked runtime mode. This mode hides the design menus, navigation panes, and toolbars. It prevents users from changing the database structure, tables, or internal code.
How to open ACCDR files?
The standard way to open an .ACCDR file is with Microsoft Access or the free Microsoft Access Runtime. If you do not have these programs installed, viewer.online/accdr analyzes .ACCDR files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Best practices and troubleshooting
Sometimes, you need to view the database design or raw tables. Because .ACCDR files are often identical to standard .ACCDB files, you can sometimes rename the extension from .ACCDR to .ACCDB. This action restores the standard menus in Microsoft Access. However, if the developer compiled the database into an .ACCDE file before renaming it to .ACCDR, the source code is permanently removed and cannot be restored.
Software and tools
- Microsoft Access: The main application used to build and manage these databases. - Microsoft Access Runtime: A free tool from Microsoft that allows users to run database applications without a full software license. - MDB Viewer: A third-party application for Mac users to open and export data from Access databases.
Summary
Because .ACCDR files use the known JetDB format, viewer.online/accdr can safely open and display them online, eliminating compatibility problems.