File Extension Library


.FDK File Extension

  • Developer by: Fluentizer LLC
  • Category: Various data Files

What is an .FDK file?

.FDK file extension is created by Fluentizer LLC. .FDK has been classified as Various data Files.

.FDK is Fluentizer fluent dictionary

The fdk file extension is associated with the Fluentizer, a learning software that is used to help understanding native English speakers.

The fdk file contains saved dictionary from Fluentizer program.


How to open:

The fdk files are used for internal purposes of Fluentizer software.

How to convert:

As far as we know, this .fdk 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 .FDK file on different platforms

Open .FDK File on Windows

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

Open .FDK File on Mac

  • Right-click (or Ctrl + Left-click) the .FDK 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"

Open .FDK File on Linux

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

Open .FDK File on iPhone

Select a file. If you don't see an application to open the .FDK 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 .FDK 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 .FDK files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .FDK files

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