File Extension Database

Open ZDB File

ZDB extension files are files that can take on various formats and applications, depending on the software that created them, some of which are below:

Zimbra Database File

In this first case, a ZDB file is a type of email data file created by the Zimbra Connector for Microsoft Outlook (ZCO).

This connector is an Outlook plugin used to manage Zimbra email accounts.

Due to licensing and copyright issues, the file is saved in the Outlook PST format but uses the ZDB extension instead.

However, despite the above, the ZDB file can be imported into an Outlook profile by first changing the file extension to PST

ZDB files are named zimbra.zdb by default.

EPSQ Database

In this case, the ZDB file is an encrypted file format used by the US military and Department of Defense.

The US Department of Defense is in charge of coordinating and supervising all government agencies and functions directly related to national security and the US Armed Forces.

The US Department of Defense has a structured system of security levels, called 'clearance level', whose purpose is to allow an individual access to classified national security information.

There are three levels of security clearance: confidential, secret, and top secret.

The ZDB file serves as the Electronic Personal Safety Questionnaire (EPSQ).

However, the ZDB file is most often used for the Standard Form (SF) 86 Questionnaire, which is used by military personnel, government employees, and government contractors to request a security clearance, for a third party.

It is important to note that the Department of Defense does not allow an applicant to apply, through a ZDB, for themselves.

Software packages to open and work with a ZDB file

Microsoft Outlook (Zimbra Plugin)
DoD EPSQ (Not available)

How Can I Open ZDB File on Windows

We researched and learned that the best way to open ZDB file is to find a ZDB file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a ZDB file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open ZDB file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as ZDB file opener then try to search online for "ZDB viewer", "application to open ZDB file" or "open ZDB file" queries in the search engine you like.
Install the application you found and check if it can open ZDB file

How Can I Open ZDB File on Mac OS

We recommend to find a ZDB file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a ZDB file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with ZDB file.
If you know the Mac OS application which can work as ZDB file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open ZDB file in it.
If you don't know the application which can open ZDB file then try to search for "ZDB viewer", "application to open ZDB file" or "read ZDB file" queries in the online search engine you like.
Install the application you found and check if it can read ZDB file

How Can I Open ZDB File on Android

If you downloaded a ZDB file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded ZDB file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "ZDB".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "ZDB viewer", "ZDB file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open ZDB File on iPhone or iPad

To open ZDB File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the ZDB file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "ZDB". This way you can find apps which can open ZDB files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "ZDB viewer" or "ZDB file" online in your favorite search engine.

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