File Extension Library

.VDF File Extension

  • Developer by: Valve
  • Category: Game Files
  • Format: Text

What is an .VDF file?

.VDF file extension is created by Valve. .VDF has been classified as Game Files. The format of .VDF file is Text.

.VDF is Valve Data File

A VDF file is a data file format used by Valve's Source game engine. It contains various kinds of game metadata, including data for resources, installation scripts, configuration scripts, and visualization elements.

VDF files can often be seen when installing games distributed through Valve's Steam game client, such as Half-Life 2 and Counter-Strike. The file features Valve's KeyValues format, which is a plain text format that saves key-value parameters in a tree hierarchy. The format is similar to JSON and YAML. While VDF files are meant to be used by the Valve Source game engine, you can open the files with a text editor to view the contents.

NOTE: You can view more information about Valve's KeyValues format on the KeyValues Wiki Page.

List of all softwares that can open the Valve Data File
Valve Source SDK
Microsoft Notepad
File Type 2 AntiVir Virus Definitions File
Developer by: Avira Operations Category: Data Files Format: Binary

Data file used by AntiVir, an antivirus application for Windows; saves virus definitions, which contain signatures that are used for recognizing viruses on the computer system; often downloaded during software updates so the software can check for new viruses.

VDF files are saved to the AntiVir installation directory and have the filenames vbase000.vdf, vbase001.vdf, etc.

List of all softwares that can open the AntiVir Virus Definitions File
Avira Antivirus Pro 2019
File Type 3 VirtualDub Video Filter
Developer by: VirtualDub Category: Plugin Files

Filter plugin for VirtualDub, a video capture and processing utility program for Windows; adds extra features such as special effects and additional file support to the VirtualDub program.

VDF filters can be loaded into VirtualDub by clicking on the "Load" button in the Add Filters dialog box. They will be loaded automatically if the VDF files are placed in the plugins folder within the VirtualDub program folder.

List of all softwares that can open the VirtualDub Video Filter
File Type 4 Gothic Game Data File
Developer by: Piranha Bytes Category: Game Files

Data file used by the Gothic video game series; contains worlds, characters, 3D models, textures, and sounds; Gothic II VDF files are stored in the /Gothic II/Data folder.

VDF files may be edited with GoMan or a hex-editor, but typically should not be altered. Incorrectly modifying VDF files may make them unusable.

How to Open .VDF file on different platforms

Open .VDF File on Windows

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

Open .VDF File on Mac

  • Right-click (or Ctrl + Left-click) the .VDF 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 .VDF File on Linux

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

Open .VDF File on iPhone

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

How to fix problems with .VDF files

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