The File Extensions Database

.CDB File Extension

  • Developer by: Nokia
  • Category: Database Files
  • Format: Binary

What is an .CDB file?

.CDB is Symbian Phonebook Database

Database file created by Symbian OS mobile devices, such as Nokia phones; contains phonebook contacts, including names, addresses, and phone numbers; used to backup and synchronize contacts between a computer and a Symbian OS device.

CDB files are typically found with the name contacts.cdb. They can be converted into vCard .VCF files using Nokisoft Noki.

Programs that open Symbian Phonebook Database
Nokia PC Suite
Nokisoft Noki
Nokia PC Suite
File Type 2 CardScan Contacts Database
Developer by: CardScan Category: Database Files Format: Binary

Database file created by CardScan, a program that allows users to organize and synchronize their contacts between desktop computers and mobile devices; contains all contacts stored in a proprietary format.

CDB files can be synchronized, exported to, or imported from, Microsoft Outlook, iPhones, Blackberry handhelds, Windows mobile devices, and many other devices and programs.

CardScan is available in Personal, Executive, Team, and At Your Service editions.

File Type 3 Pocket Access Database
Developer by: Microsoft Category: Database Files Format: Binary

Database file created by Pocket Access, a relational database program that is similar to regular Microsoft Access, but reduced in complexity for Pocket PC mobile devices; may contain relational database schemas, forms, and reports; used to store Access data on mobile devices.

CDB files can be converted to .MDB files using Microsoft ActiveSync.

Programs that open Pocket Access Database
Microsoft ActiveSync

How to solve problems with CDB files

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