3 file types use the .zdb file extension.

What is a ZDB file?

Email data file created by Zimbra Connector for Microsoft Outlook (ZCO), a plug-in for Outlook used to manage Zimbra email accounts; saved in the Outlook .PST format but uses the ".zdb" extension instead; can be imported into an Outlook profile by first renaming the file extension to ".pst."

More Information

Category: Data Files

EPSQ Database

Encrypted file format used by the U.S. military and Department of Defense for Electronic Personal Security Questionnaire (EPSQ) documents; most often used for the Standard Form (SF) 86 Questionnaire, which is used by military personnel, government employees, and government contractors to apply for a Security Clearance.

Programs that open ZDB files

Updated: 2006

Quicken Online File

A ZDB file may also be a data file created by Intuit Quicken, a financial management app. It stores financial data entered by a user, such as their employer and bank account. Quicken no longer stores data in ZDB files.

Intuit Quicken is an application that helps you manage and track your financial accounts. The software comes with budgeting tools, recording capabilities, and organizational features for staying on top of your finances.

Older versions of Quicken used ZDB files to store financial data that the software referenced when loading information in the app. Since only early versions of Quicken software use ZDB files, you will not find ZDB files with recent versions of the software.

You should not attempt to open ZDB files. Instead, Intuit Quicken references the ZDB file. However, Quicken no longer supports ZDB files.

Programs that open or reference ZDB files

Updated: July 20, 2022