File Extension Library


  • Developer by: Apple, Inc.
  • Category: Various data Files

What is an .ADDRESSBOOKLOCKS file?

.ADDRESSBOOKLOCKS file extension is created by Apple, Inc.. .ADDRESSBOOKLOCKS has been classified as Various data Files.

.ADDRESSBOOKLOCKS is Mac OS X Address Book file

The addressbooklocks file extension is associated with the Address Book, a contacts management tool included in Apple Mac OS X operating system.

The addressbooklocks file stores some kind of data used by Mac OS X Address Book.

How to open:

Due the variability and uncertainty of this file type group, there is no general information available, about how to open this various data file format. However most files with extension from this group are usually not meant to be opened or viewed directly. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.For general information try to look at:Identifying unknown file formats

How to convert:

As far as we know, this .addressbooklocks file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to Open .ADDRESSBOOKLOCKS file on different platforms

Open .ADDRESSBOOKLOCKS File on Windows

  • Right-click a .ADDRESSBOOKLOCKS
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .ADDRESSBOOKLOCKS file and Select check box "Always use this app to open .ADDRESSBOOKLOCKS files" Press "Ok"


  • Right-click (or Ctrl + Left-click) the .ADDRESSBOOKLOCKS file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"


Right click on the .ADDRESSBOOKLOCKS file, choose "Open with" and select a program from the list above


Select a file. If you don't see an application to open the .ADDRESSBOOKLOCKS file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .ADDRESSBOOKLOCKS File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .ADDRESSBOOKLOCKS files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .ADDRESSBOOKLOCKS files

  1. You need to update the application that you normally use to open .ADDRESSBOOKLOCKS files. Only the latest version of the software supports the current .ADDRESSBOOKLOCKS file format
  2. You need to check the .ADDRESSBOOKLOCKS file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)